Department Interface Design

List of publications

• 
  Abou-Ras, D.; Bär, M.; Caballero, R.; Gunder, R.; Hages, C.; Heinemann, M.D.; Kaufmann, C.A.; Krause, M.; Levcenco, S.; Mainz, R.; Márquez, J.; Nikolaeva, A.; Redinger, A.; Schäfer, N.; Schorr, S.; Stange, H.; Unold, T.; Wilks, R.G.: Advanced characterization and in-situ growth monitoring of Cu(In,Ga)Se₂ thin films and solar cells. Solar Energy 170 (2018), p. 102-112
  doi: 10.1016/j.solener.2018.04.032
  Open Access
• 
  Agbenyeke, R.; Andreasen, J.; Benhaddou, N.; Bowers, J.W.; Breternitz, J.; Bär, M.; Dimitrievska, M.; Fermin, D.J.; Ganose, A.; Hawkins, C.; Jaramillo, R.; Kavanagh, S.R.; Kondrotas, R.; Major, J.D.; Mandati, S.; Nicolson, A.; Platzer Björkman, C.; Savory, C.; Scanlon, D.O.; Schorr, S.; Scragg, J.J.S.; Sheppard, A.; Shin, B.; Siebentritt, S.; Sood, M.; Sopiha, K.V.; Spalatu, N.; Tang, J.; Walsh, A.; Weiss, T.P.; Woods-Robinson, R.; Yetkin, H.A.: Materials design and bonding: general discussion. Faraday Discussions 239 (2022), p. 375-404
  doi: 10.1039/d2fd90058k
• 
  Aktekin, B.; Kataev, E.; Riegger, L.M.; Garcia-Diez, R.; Chalkley, Z.; Becker, J.; Wilks, R.G.; Henss, A.; Bär, M.; Janek, J.: Operando Photoelectron Spectroscopy Analysis of Li₆PS₅Cl Electrochemical Decomposition Reactions in Solid-State Batteries. ACS Energy Letters 9 (2024), p. 3492-3500
  doi: 10.1021/acsenergylett.4c01072
  Open Access (external provider)
• 
  Alvares Ferreira, E.; Yokaichiya, F.; Marumo, J.; Vicente, R.; Garcia-Moreno, F.; Kamm, P.; Klaus, M.; Russina, M.; Günther, G.; Jimenez, C.; Franco, M.: Influence of the irradiation in cement for the Brazilian radioactive waste repositories: Characterization via X-ray diffraction, X-ray tomography and quasielastic neutron scattering. Physica B 551 (2018), p. 256-261
  doi: 10.1016/j.physb.2018.01.018
• 
  Andreasen, J.W.; Arca, E.; Bowers, J.W.; Bär, M.; Breternitz, J.; Dale, P.J.; Dimitrievska, M.; Fermin, D.J.; Ganose, A.; Hages, C.J.; Hobson, T.; Jaramillo, R.; Kavanagh, S.R.; Kayastha, P.; Kondrotas, R.; Lee, J.; Major, J.D.; Mandati, S.; Mitzi, D.B.; Scanlon, D.O.; Schorr, S.; Scragg, J.J.S.; Shin, B.; Siebentritt, S.; Smiles, M.; Sood, M.; Sopiha, K.V.; Spalatu, N.; Sutton, M.; Unold, T.; Valdes, M.; Walsh, A.; Wang, M.; Wang, X.; Weiss, T.P.; Woo, Y.W.; Woods-Robinson, R.; Tiwari, D.: Novel chalcogenides, pnictides and defect-tolerant semiconductors: general discussion. Faraday Discussions 239 (2022), p. 287-316
  doi: 10.1039/d2fd90057b
  Open Access (external provider)
• 
  Andreasen, J.W.; Breternitz, J.; Bär, M.; Dale, P.J.; Dimitrievska, M.; Fermin, D.J.; Fleck, N.; Hages, C.J.; Havryliuk, Y.; Hawkins, C.; Jaramillo, R.; Kavanagh, S.R.; Kayastha, P.; Kondrotas, R.; Lapalikar, V.; Mandati, S.; Mitzi, D.B.; Platzer Björkman, C.; Savory, C.; Scragg, J.J.S.; Shin, B.; Siebentritt, S.; Sood, M.; Tiwari, D.; Valdes, M.; Walsh, A.; Weiss, T.P.; Woo, Y.W.; Woods-Robinson, R.; Yetkin, H.A.: Bulk and surface characterisation techniques of solar absorbers: general discussion. Faraday Discussions 239 (2022), p. 180-201
  doi: 10.1039/d2fd90056d
  Open Access (external provider)
• 
  Bär, M.: EMIL – Energy conversion devices illuminated by soft and hard x-rays. In: 29th Workshop on Quantum Solar Energy Conversion - (QUANTSOL 2017) March 19-25, 2017, Rauris, ÖsterreichQuantsol, 2017, p. 1-2
  http://www.quantsol.org/pub/pub17_05.pdf
  Open Access
• 
  Bär, M.; Barreau, N.; Couzinie-Devy, F.; Felix, R.; Klaer, J.; Pookpanratana, S.; Blum, M.; Zhang, Y.; Denlinger, J.; Yang, W.; Wilks, R.; Weinhardt, L.; Schock, H.-W.; Kessler, J.; Heske, C.: The heavily intermixed In2S3/Cu(In, Ga)Se2 interface as Revealed by photoelectron and soft x-ray emission spectroscopy. In: 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC)IEEE, 2013. - ISBN 978-1-4799-3299-3, p. 857-862
  doi: 10.1109/PVSC.2013.6744280
• 
  Bär, M.; Barreau, N.; Couzinié-Devy, F.; Pookpanratana, S.; Klaer, J.; Blum, M.; Zhang, Y.; Yang, W.; Denlinger, J.D.; Schock, H.-W.; Weinhardt, L.; Kessler, J.; Heske C.: Nondestructive depth-resolved spectroscopic investigation of the heavily intermixed In₂S₃/Cu(In,Ga)Se₂ interface. Applied Physics Letters 96 (2010), p. 184101/1-3
  doi: 10.1063/1.3425739
• 
  Bär, M.; Barreau, N.; Couzinie-Devy, F.; Weinhardt, L.; Wilks, R.G.; Kessler, J.; Heske, C.: Impact of Annealing-Induced Intermixing on the Electronic Level Alignment at the In₂S₃/Cu(In,Ga)Se₂ Thin-Film Solar Cell Interface. ACS Applied Materials & Interfaces 8 (2016), p. 2120-2124
  doi: 10.1021/acsami.5b10614
• 
  Bär, M.; Klaer, J.; Felix, R.; Barreau, N.; Weinhardt, L.; Wilks, R.G.; Heske, C.; Schock, H.-W.: Surface Off-Stoichiometry of CuInS₂ Thin-Film Solar Cell Absorbers. IEEE Journal of Photovoltaics 3 (2013), p. 828-832
  doi: 10.1109/JPHOTOV.2012.2228299
  Open Access (external provider)
• 
  Bär, M.; Klaer, J.; Weinhardt, L.; Wilks, R.G.; Krause, S.; Blum, M.; Yang, W.; Heske, C.; Schock, H.-W.: Cu_2-xS Surface Phases and Their Impact on the Electronic Structure of CuInS₂ Thin Films - A Hidden Parameter in Solar Cell Optimization. Advanced Engineering Materials 3 (2013), p. 777-781
  doi: 10.1002/aenm.201200946
• 
  Bär, M.; Perrenoud, J.; Wilks, R.G.; Buecheler, S.; Kranz, L.; Fella, C.; Skarp, J.; Blum, M.; Yang, W.; Weinhardt, L.; Heske, C.; Tiwari, A.N.: CdCl2 activation-induced chemical interaction at the CdTe/ZnO1-XSX thin-film solar cell interface. In: 2011, 37th IEEE Photovoltaic Specialists Conference (PVSC 2011) : Seattle, Washington, USA, 19 - 24 June 2011Piscataway, NJ: IEEE, 2011. - ISBN 978-1-4244-9965-6, p. 002701-002704
  doi: 10.1109/PVSC.2011.6186505
• 
  Bär, M.; Pookpanratana, S.; Weinhardt, L.; Wilks, R.-G.; Schubert, B.-A.; Marsen, B.; Unold, T.; Blum, M.; Krause, S.; Zhang, Y.; Ranasinghe, A.; Ramanathan, K.; Repins, I.; Contreras, M.-A.; Nishiwaki, S.; Liu, X.; Paudel, N.-R.; Fuchs, O.; Niesen, T.-P.; Yang, W.; Karg, F.; Compaan, A.-D.; Shafarman, W.-N.; Noufi, R.; Schock, H.-W.; Heske, C.: Soft X-rays shedding light on thin-film solar cell surfaces and interfaces. Journal of Electron Spectroscopy and Related Phenomena 190 (2013), p. 47-53
  doi: 10.1016/j.elspec.2012.10.004
• 
  Bär, M.; Repins, I.; Contreras, M.A.; Weinhardt, L.; Noufi, R.; Heske, C.: Chemical and electronic surface structure of 20%-efficient Cu(In,Ga)Se₂ thin film solar cell absorbers. Applied Physics Letters 95 (2009), p. 052106/1-3
  doi: 10.1063/1.3194153
• 
  Bär, M.; Repins, I.; Weinhardt, L.; Alsmeier, J.-H.; Pookpanratana, S.; Blum, M.; Yang, W.; Heske, C.; Wilks, R.G.; Noufi, R.: Zn-Se-Cd-S Interlayer Formation at the CdS/Cu₂ZnSnSe₄ Thin-Film Solar Cell Interface. ACS Energy Letters 2 (2017), p. 1632-1640
  doi: 10.1021/acsenergylett.7b00140
  Open Access
• 
  Bär, M.; Schnabel, T.; Ahlsmeier, J.-H.; Krause, S.; Koch, N.; Wilks, R.G.; Ahlswede, E.: CdS/low-band-gap kesterite thin-film solar cell absorber heterojunction: Energy level alignment and dominant recombination process. ACS Applied Energy Materials 1 (2018), p. 475-482
  doi: 10.1021/acsaem.7b00071
  Open Access
• 
  Bär, M.; Schubert, B.; Marsen, B.; Unold, T.; Wilks, R.G.; Schock, H.-W.; Pookpanratana, S.; Blum, M.; Krause, S.; Zhang, Y.; Heske, C.; Yang, W.; Weinhardt, L.: Cu₂ZnSnS₄ thin-film solar cell absorber composition revealed by energy-dispersive and soft x-ray emission spectroscopy. In: 35th IEEE Photovoltaic Specialists Conference (PVSC 2010) : Honolulu, Hawaii, USA, 20 - 25 June 2010Piscataway, NJ: IEEE, 2010. - ISBN 978-1-424-45890-5, p. 646-649
• 
  Bär, M.; Schubert, B.-A.; Marsen, B.; Krause, S.; Pookpanratana, S.; Unold, T.; Weinhardt, L.; Heske, C.; Schock, H.-W.: Impact of KCN etching on the chemical and electronic surface structure of Cu₂ZnSnS₄ thin-film solar cell absorbers. Applied Physics Letters 99 (2011), p. 152111/1-4
  doi: 10.1063/1.3650717
• 
  Bär, M.; Schubert, B.-A.; Marsen, B.; Krause, S.; Pookpanratana, S.; Unold, T.; Weinhardt, L.; Heske, C.; Schock, H.-W.: Native oxidation and Cu-poor surface structure of thin film Cu2ZnSnS4 solar cell absorbers. Applied Physics Letters 99 (2011), p. 112103/1-3
  doi: 10.1063/1.3637574
• 
  Bär, M.; Schubert, B.-A.; Marsen, B.; Schorr, S.; Wilks, R.G.; Weinhardt, L.; Pookpanratana, S.; Blum, M.; Krause, S.; Zhang, Y.; Yang, W.; Unold, T.; Heske, C.; Schock, H.-W.: Electronic structure of Cu₂ZnSnS₄ probed by soft x-ray emission and absorption spectroscopy. Physical Review B 84 (2011), p. 035308/1-6
  doi: 10.1103/PhysRevB.84.035308
• 
  Bär, M.; Schubert, B.-A.; Marsen, B.; Wilks, R.G.; Blum, M.; Krause, S.; Pookpanratana, S.; Zhang, Y.; Unold, T.; Yang, W.; Weinhardt, L.; Heske, C.; Schock, H.-W.: Cu₂ZnSnS₄ thin-film solar cell absorbers illuminated by soft x-rays. Journal of Materials Research 27 (2012), p. 1097-1104
  doi: 10.1557/jmr.2012.59
• 
  Bär, M.; Schubert, B.-A.; Marsen, B.; Wilks, R.G.; Pookpanratana, S.; Blum, M.; Krause, S.; Unold, T.; Yang, W.; Weinhardt, L.; Heske, C.; Schock, H.-W.: Cliff-like conduction band offset and KCN-induced recombination barrier enhancement at the CdS/Cu₂ZnSnS₄ thin-film solar cell heterojunction. Applied Physics Letters 99 (2011), p. 222105/1-3
  doi: 10.1063/1.3663327
• 
  Bär, M.; Schubert, B.-A.; Wilks, R.G.; Marsen, B.; Zhang, Y.; Blum, M.; Krause, S.; Yang, W.; Unold, T.; Weinhardt, L.; Heske, C.; Schock, H.-W.: Identification of Impurity Phases in Cu2ZnSnS4 Thin-film Solar Cell Absorber Material by Soft X-ray Absorption Spectroscopy. In: Bell, L.D. [u.a.] [Eds.] : Compound semiconductors for energy applications and environmental sustainability - 2011 : symposium held April 25 - 29, 2011, San Francisco, California, U.S.A. ; [Symposium D "Compound Semiconductors for Energy Applications and Environmental Sustainability" ... at the 2011 MRS spring meeting]New York, NY: Cambridge Univ. Press, 2011 (Materials Research Society symposium proceedings ; 1324). - ISBN 978-1-605-11301-2, p. mrs11-1324-d15-19/1-6
• 
  Bär, M.; Starr, D.E.; Lambertz, A.; Holländer, B.; Alsmeier, J.-H.; Weinhardt, L.; Blum, M.; Gorgoi, M.; Yang, W.; Wilks, R.G.; Heske, C.: Microcrystalline silicon oxides for silicon-based solar cells: Impact of the O/Si ratio on the electronic structure. In: Louay A. Eldada ... [Ed.] : Thin Films for Solar and Energy Technology VISPIE, 2014 (Proeedings of the SPIE ; 9177). - ISBN 978-1-6284-1204-8, p. 91770E/1-3
  doi: 10.1117/12.2061902
• 
  Bär, M.; Theisen, J.-P.; Wilks, R.G.; Erfurth, F.; Felix, R.; Gerlach, D.; Haas, S.; Tati Bismaths, L.; Reinert, F.; Kronast, F.; Niesen, T.P.; Palm, J.; Visbeck, S.; Weinhardt, L.: Lateral inhomogeneity of the Mg/(Zn+Mg) composition at the (Zn,Mg)O/CuIn(S,Se)₂ thin-film solar cell interface revealed by photoemission electron microscopy. Journal of Applied Physics 113 (2013), p. 193709/1-5
  doi: 10.1063/1.4804413
  Open Access (external provider)
• 
  Bär, M.; Weinhardt, L.; Heske, C.: Soft X-ray and Electron Spectroscopy: A Unique "Tool Chest" to Characterize the Chemical and Electronic Properties of Surfaces and Interfaces. In: Advanced Characterization Techniques for Thin Film Solar Cells: Second EditionWeinheim: Wiley, 2016. - ISBN 978-3-527-41003-3, p. 501-522
  doi: 10.1002/9783527699025.ch18
• 
  Bär, M.; Weinhardt, L.; Marsen, B.; Cole, B.; Gaillard, N.; Miller, E.L.; Heske, C.: Mo incorporation in WO₃ thin film photoanodes: Tailoring the electronic structure for photoelectrochemical hydrogen production. Applied Physics Letters 96 (2010), p. 032107/1-3
  doi: 10.1063/1.3291689
• 
  Bär, M.; Wimmer, M.; Wilks, R.G.; Roczen, M.; Gerlach, D.; Ruske, F.; Lips, K.; Rech, B.; Weinhardt, L.; Blum, M.; Pookpanratana, S.; Krause, S.; Zhang, Y.; Heske, C.; Yang, W.; Denlinger J.D.: Impact of solid-phase crystallization of amorphous silicon on the chemical structure of the buried Si/ZnO thin film solar cell interface. Applied Physics Letters 97 (2010), p. 072105/1-3
  doi: 10.1063/1.3462316
• 
  Barreau, M.; Salusso, D.; Zhang, J.; Haevecker, M.; Teschner, D.; Efimenko, A.; Bournel, F.; Gallet, J.-J.; Borfecchia, E.; Sobczak, K.; Petit, C.: Uncovering the critical function of lanthanum in CH₄ production from CO₂ using exsolved LaNiO₃ perovskite catalysts. Journal of Materials Chemistry A 12 (2024), p. 7605-7621
  doi: 10.1039/d3ta07391b
  Open Access
• 
  Basbus, J.; Arce, M.; Troiani, H.; Prado, F.; Mogni, L.; Serquis, A.: Characterization of the high temperature properties of BaCe_0.4Zr_0.4Pr_0.2O_3-δ perovskite as a potential material for PC-SOFCs. New Journal of Chemistry 45 (2021), p. 12957-12965
  doi: 10.1039/d1nj02197d
• 
  Basbus, J.F.; Arce, M.D.; Alonso, J.A.; González, M.A.; Cuello, G.J.; Fernández-Díaz, M.T.; Sha, Z.; Skinner, S.J.; Mogni, L.V.; Serquis, A.C.: In situ neutron diffraction study of BaCe_0.4Zr_0.4Y_0.2O_3-δ proton conducting perovskite: insight into the phase transition and proton transport mechanism. Journal of Materials Chemistry A 10 (2022), p. 9037-9047
  doi: 10.1039/d1ta10789e
• 
  Basbus, J.F.; Arce, M.D.; Napolitano, F.R.; Troiani, H.E.; Alonso, J.A.; Saleta, M.E.; González, M.A.; Cuello, G.J.; Fernández-Díaz, M.T.; Sainz, M.P.; Bonanos, N.; Jimenez, C.E.; Giebeler, L.; Figueroa, S.J.A.; Caneiro, A.; Serquis, A.C.; Mogni, L.V.: Revisiting the Crystal Structure of BaCe_0.4Zr_0.4Y_0.2O_3-δ Proton Conducting Perovskite and Its Correlation with Transport Properties. ACS Applied Energy Materials 3 (2020), p. 2881-2892
  doi: 10.1021/acsaem.9b02498
  Open Access (external provider)
• 
  Benkert, A.; Blum, M.; Meyer, F.; Wilks, R.G.; Yang, W.; Bär, M.; Reinert, F.; Heske, C.; Weinhardt, L.: Setup for in situ investigation of gases and gas/solid interfaces by soft x-ray emission and absorption spectroscopy. Review of Scientific Instruments 85 (2014), p. 015119/1-5
  doi: 10.1063/1.4862059
• 
  Benkert, A.; Meyer, F.; Hauschild, D.; Blum, M.; Yang, W.; Wilks, R. G.; Baer, M.; Reinert, F.; Heske, C.; Weinhardt, L.: Isotope Effects in the Resonant Inelastic Soft X-ray Scattering Maps of Gas-Phase Methanol. The Journal of Physical Chemistry A 120 (2016), p. 2260–2267
  doi: 10.1021/acs.jpca.6b02636
• 
  Blum, M.; Odelius, M.; Weinhardt, L.; Pookpanratana, S.; Bär, M.; Zhang, Y.; Fuchs, O.; Yang, W.; Umbach, E.; Heske, C.: Ultrafast Proton Dynamics in Aqueous Amino Acid Solutions Studied by Resonant Inelastic Soft X-ray Scattering. The Journal of Physical Chemistry B 116 (2012), p. 13757-13764
  doi: 10.1021/jp302958j
• 
  Blum, M.; Weinhardt, L.; Fuchs, O.; Bär, M.; Zhang, Y.; Weigand, M.; Krause, S.; Pookpanratana, S.; Hofmann, T.; Yang, W.; Denlinger, J.D.; Umbach, E.; Heske, C.: Solid and liquid spectroscopic analysis (SALSA) -- a soft x-ray spectroscopy endstation with a novel flow-through liquid cell. Review of Scientific Instruments 80 (2009), p. 123102/1-6
  doi: 10.1063/1.3257926
• 
  Bodenstein-Dresler, L.C.W.; Kama, A.; Frisch, J.; Hartmann, C.; Itzhak, A.; Wilks, R.G.; Cahen, D.; Bär, M.: Prospect of making XPS a high-throughput analytical method illustrated for a Cu_xNi_1-xO_y combinatorial material library. RSC Advances 12 (2022), p. 7996-8002
  doi: 10.1039/d1ra09208a
  Open Access
• 
  Bombsch, J.; Avancini, E.; Carron, R.; Handick, E.; Garcia-Diez, R.; Hartmann, C.; Félix, R.; Abou-Ras, D.; Ueda, S.; Wilks, R.G.; Bär, M.: Unraveling the Impact of Combined NaF/RbF Postdeposition Treatments on the Deeply Buried Cu(In,Ga) Se₂/Mo Thin-Film Solar Cell Interface. Advanced Energy & Sustainability Research 2 (2021), p. 2100101/1-9
  doi: 10.1002/aesr.202100101
  Open Access
• 
  Bombsch, J.; Avancini, E.; Carron, R.; Handick, E.; Garcia-Diez, R.; Hartmann, C.; Félix, R.; Ueda, S.; Wilks, R.G.; Bär, M.: NaF/RbF-Treated Cu(In,Ga)Se₂ Thin-Film Solar Cell Absorbers: Distinct Surface Modifications Caused by Two Different Types of Rubidium Chemistry. ACS Applied Materials & Interfaces 12 (2020), p. 34941-34948
  doi: 10.1021/acsami.0c08794
  Open Access (external provider)
• 
  Bombsch, J.; Kodalle, T.; Garcia-Diez, R.; Hartmann, C.; Félix, R.; Ueda, S.; Wilks, R.G.; Kaufmann, C.A.; Bär, M.: Chemical Interface Structures in CdS/RbInSe₂/Cu(In,Ga)Se₂ Thin-Film Solar Cell Stacks. Advanced Functional Materials 34 (2024), p. 2403685/1-8
  doi: 10.1002/adfm.202403685
  Open Access
• 
  Bombsch, Jakob: Surface and interface properties of chalcopyrite-based solar cell structures as revealed by photoelectron spectroscopy. , FAU Erlangen-Nürnberg, 2021
• 
  Braig, C.; Löchel, H.; Rehanek, J.; Firsov, A.; Brzhezinskaya, M.; Erko, A.: Reflection zone plate concept for resonant inelastic x-ray scattering spectrometry. Applied Optics 56 (2017), p. 515-520
  doi: 10.1364/AO.56.000515
  Open Access
• 
  Braig, C.; Sokolov, A.; Wilks, R.; Kozina, X.; Kunze, T.; Bjeoumikhova, S.; Thiel, M.; Erko, A.; Bär, M.: Polycapillary-boosted instrument performance in the extreme ultraviolet regime for inverse photoemission spectroscopy. Optics Express 25 (2017), p. 31840-31852
  doi: 10.1364/OE.25.031840
  Open Access
• 
  Braig, C.; Sokolov, A.; Wilks, R.G.; Kozina, X.; Kunze, T.; Bjeoumikhova, S.; Thiel, M.; Erko, A.; Bär, M.: Erratum : Polycapillary-boosted instrument performance in the extreme ultraviolet regime for inverse photoemission spectroscopy: erratum. Optics Express 30 (2022), p. 34935-34937
  doi: 10.1364/oe.473152
  Open Access
• 
  Brunken, S.; Wollgarten, M.; Ellmer, K.: Analysis of the early stages of the rapid, nickel-assisted crystallization of WS₂ films. Journal of Applied Physics 120 (2016), p. 165307/1-4
  doi: 10.1063/1.4966166
• 
  Cao, J.; Jafta, C.J.; Gong, J.; Ran, Q.; Lin, X.; Felix, R.; Wilks, R.G.; Bär, M.; Yuan, J.; Ballauff, M.; Lu, Y.: Synthesis of Dispersible Mesoporous Nitrogen-Doped Hollow Carbon Nanoplates with Uniform Hexagonal Morphologies for Supercapacitors. ACS Applied Materials & Interfaces 8 (2016), p. 29628-29636
  doi: 10.1021/acsami.6b08946
• 
  Chen, D.; Barreau, M.; Turczyniak-Surdacka, S.; Sobczak, K.; Strawski, M.; Salle, A.L.G.L.; Efimenko, A.; Teschner, D.; Petit, C.; Zafeiratos, S.: Ceria nanoparticles as promoters of CO2 electroreduction on Ni/YSZ: An efficient preparation strategy and insights into the catalytic promotion mechanism. Nano Energy 101 (2022), p. 107564/1-16
  doi: 10.1016/j.nanoen.2022.107564
  Open Access
• 
  Chernysheva, E.; Srour, W.; Philippe, B.; Baris, B.; Chenot, S.; Felix Duarte, R.; Gorgoi, M.; Cruguel, H.; Rensmo, H.; Montigaud, H.; Jupille, J.; Cabailh, G.; Grachev, S.; Lazzari, R.: Band alignment at Ag/ZnO(0001) interfaces: A combined soft and hard x-ray photoemission study. Physical Review B 97 (2018), p. 235430/1-15
  doi: 10.1103/PhysRevB.97.235430
  Open Access (external provider)
• 
  Choubrac, L.; Bär, M.; Kozina, X.; Félix, R.; Wilks, R.G.; Brammertz, G.; Levcenko, S.; Arzel, L.; Barreau, N.; Harel, S.; Meuris, M.; Vermang, B.: Sn Substitution by Ge: Strategies to Overcome the Open-Circuit Voltage Deficit of Kesterite Solar Cells. ACS Applied Energy Materials 3 (2020), p. 5830-5839
  doi: 10.1021/acsaem.0c00763
  Open Access (external provider)
• 
  Das, C.; Roy, R.; Kedia, M.; Kot, M.; Zuo, W.; Félix, R.; Sobol, T.; Flege, J.I.; Saliba, M.: Unraveling the Role of Perovskite in Buried Interface Passivation. ACS Applied Materials & Interfaces 15 (2023), p. 56500–56510
  doi: 10.1021/acsami.3c13085
  Open Access
• 
  Doubaji, S.; Philippe, B.; Saadoune, I.; Gorgoi, M.; Gustafsson, T.; Solhy, A.; Valvo, M.; Rensmo, H.; Edstrom, K.: Passivation Layer and Cathodic Redox Reactions in Sodium-Ion Batteries Probed by HAXPES. ChemSusChem 9 (2016), p. 97–108
  doi: 10.1002/cssc.201501282
• 
  Duncan, D.A.; Kephart, J.M.; Horsley, K.; Blum, M.; Mezher, M.; Weinhardt, L.; Haeming, M.; Wilks, R.G.; Hofmann, T.; Yang, W.; Bär, M.; Sampath, W.S.; Heske, C.: Characterization of Sulfur Bonding in CdS:O Buffer Layers for CdTe-based Thin-Film Solar Cells. ACS Applied Materials & Interfaces 7 (2015), p. 16382-16386
  doi: 10.1021/acsami.5b03503
• 
  Elovaara, T.; Tikkanen, J.; Granroth, S.; Majumdar, S.; Felix, R.; Huhtinen, H.; Paturi, P.: Mechanisms of photoinduced magnetization in Pr_0.6Ca_0.4MnO₃ studied above and below charge-ordering transition temperature. Journal of Physics: Condensed Matter 29 (2017), p. 425802/1-8
  doi: 10.1088/1361-648X/aa847b
• 
  Eriksson, S.K.; Hahlin, M.; Axnanda, S.; Crumlin, E.; Wilks, R.; Odelius, M.; Eriksson, A.I.K.; Liu, Z.; Ahlund, J.; Hagfeldt, A.; Starr, D.E.; Baer, M.; Rensmo, H.; Siegbahn, H.: In-Situ Probing of H₂O Effects on a Ru-Complex Adsorbed on TiO₂ Using Ambient Pressure Photoelectron Spectroscopy. Topics in Catalysis 59 (2016), p. 583-590
  doi: 10.1007/s11244-015-0533-3
  Open Access
• 
  Felix Duarte, Roberto: Analysis and Optimization of Interfaces in “Wide-Gap” Chalcopyrite-based Thin Film Solar Cell Devices. , BTU Cottbus-Senftenberg, 2015
  https://opus4.kobv.de/opus4-btu/files/3740/Roberto_Felix+Duarte_Dissertation.pdf
  Open Access
• 
  Félix, R.; Gorgoi, M.; Wilks, R.G.; Bär, M.: Hard x-ray photoelectron spectroscopy at a soft x-ray source: Present and future perspectives of hard x-ray photoelectron spectroscopy at BESSY II. Journal of Vacuum Science & Technology A 39 (2021), p. 063208/1-10
  doi: 10.1116/6.0001184
  Open Access
• 
  Félix, R.; Llobera-Vila, N.; Hartmann, C.; Klimm, C.; Hartig, M.; Wilks, R.; Bär, M.: Preparation and in-system study of SnCl2 precursor layers: towards vacuum-based synthesis of Pb-free perovskites. RSC Advances 8 (2018), p. 67-73
  doi: 10.1039/c7ra12172e
  Open Access
• 
  Félix, R.; Rehermann, C.; Liu, D.; Handick, E.; Hartmann, C.; Wilks, R.G.; Unger, E.; Bär, M.: Photoinduced phase segregation and degradation of perovskites revealed by x-ray photoelectron spectroscopy. In: Proceedings 46th IEEE Photovoltaic Specialists ConferenceIEEE, 2019. - ISBN 978-1-7281-0494-2, p. 2362-2367
  doi: 10.1109/PVSC40753.2019.8980746
• 
  Félix, R.; Weber, A.; Zander, O.; Rodriguez-Álvarez, H.; Schubert, B.; Klaer, J.; Wilks, R.; Schock, H.; Mainz, R.; Bär, M.: Selenization of CuInS₂ by rapid thermal processing - an alternative approach to induce a band gap grading in chalcopyrite thin-film solar cell absorbers? Journal of Materials Chemistry A 7 (2019), p. 2087-2094
  doi: 10.1039/c8ta10823d
  Open Access
• 
  Félix, R.; Witte, W.; Hariskos, D.; Paetel, S.; Powalla, M.; Lozac'h, M.; Ueda, S.; Sumiya, M.; Yoshikawa, H.; Kobayashi, K.; Yang, W.; Wilks, R.G.; Bär, M.: Near-surface [Ga]/([In]+[Ga]) composition in Cu(In,Ga)Se₂ thin-film solar cell absorbers: an overlooked material feature. Physica Status Solidi A 2016 (2019), p. 1800856/1-6
  doi: 10.1002/pssa.201800856
  Open Access
• 
  Fernandes, P.; Salomé, P.; Sartori, A.; Malaquias, J.; Da Cunha, A.; Schubert, B.; González, J.; Ribeiro, G.: Effects of sulphurization time on Cu₂ZnSnS₄ absorbers and thin films solar cells obtained from metallic precursors. Solar Energy Materials and Solar Cells 115 (2013), p. 157-165
  doi: 10.1016/j.solmat.2013.03.032
  Open Access (external provider)
• 
  Frisch, Johannes: Electronic properties of interfaces in polymer based organic photovoltaic cells. , Berlin, Humboldt Universität, Diss., 2015
  https://edoc.hu-berlin.de/handle/18452/17792
  Open Access
• 
  Fuchs, O. ; Weinhardt, L. ; Blum, M. ; Weigand, M. ; Umbach, E. ; Bär, M. ; Heske, C. ; Denlinger, J. ; Chuang, Y.-D. ; McKinney, W. ; Hussain, Z. ; Gullikson, E. ; Jones, M. ; Batson, P. ; Nelles, B. ; Follath, R.: High-resolution, high-transmission soft x-ray spectrometer for the study of biological samples. Review of Scientific Instruments 80 (2009), p. 063103/1-7
• 
  Futscher, M.; Schultz, T.; Frisch, J.; Ralaiarisoa, M.; Metwalli, E.; Nardi, M.V.; Müller-Buschbaum, P.; Koch, N.: Electronic properties of hybrid organic/inorganic semiconductor pn-junctions. Journal of Physics: Condensed Matter 31 (2019), p. 064002/1-8
  doi: 10.1088/1361-648X/aaf310
  Open Access
• 
  Gaillard, N.; Cole, B.; Kaneshiro, J.; Miller, E.L.; Marsen, B.; Weinhardt, L.; Bär, M.; Heske, C.; Ahn, K.-S.; Yan, Y.; Al-Jassim M.M.: Improved current collection in WO₃:Mo/WO₃ bilayer photoelectrodes. Journal of Materials Research 25 (2010), p. 45-51
  doi: 10.1557/JMR.2010.0019
• 
  Garcia Diez, Raul: Characterization of nanoparticles by continuous contrast variation in small-angle X-ray scattering. , Berlin, Technische Universität, Diss., 2017
  https://depositonce.tu-berlin.de/bitstream/11303/7291/4/garcia_diez_raul.pdf
  Open Access
• 
  Gerlach, D.; Wilks, R.G.; Wippler, D.; Wimmer, M.; Lozac'h, M.; Félix, R.; Mück, A.; Meier, M.; Ueda, S.; Yoshikawa, H.; Gorgoi, M.; Lips, K.; Rech, B.; Sumiya, M.; Hüpkes, J.; Kobayashi, K.; Bär, M.: The silicon/zinc oxide interface in amorphous silicon-based thin-film solar cells: Understanding an empirically optimized contact. Applied Physics Letters 103 (2013), p. 023903/1-5
  doi: 10.1063/1.4813448
  Open Access (external provider)
• 
  Gerlach, D.; Wimmer, M.; Wilks, R.G.; Felix, R.; Kronast, F.; Ruske, F.; Baer, M.: The complex interface chemistry of thin-film silicon/zinc oxide solar cell structures. Physical Chemistry Chemical Physics 16 (2014), p. 26266-26272
  doi: 10.1039/c4cp03364g
• 
  Gerlach, D.; Wippler, D.; Wilks, R.G.; Wimmer, M.; Lozac'h, M.; Felix, R.; Ueda, S.; Yoshikawa, H.; Lips, K.; Rech, B.; Sumiya, M.; Kobayashi, K.; Gorgoi, M.; Hüpkes, J.; Bär, M.: p-Type a-Si:H/ZnO:Al and μc-Si:H/ZnO:Al Thin-Film Solar Cell Structures-A Comparative Hard X-Ray Photoelectron Spectroscopy Study. IEEE Journal of Photovoltaics 3 (2013), p. 483-487
  doi: 10.1109/JPHOTOV.2012.2224644
  Open Access (external provider)
• 
  Grinter, D.C.; Venturini, F.; Ferrer, P.; van Spronsen, M.A.; Arrigo, R.; Quevedo Garzon, W.; Roy, K.; Large, A.I.; Kumar, S.; Held, G.: The Versatile Soft X-Ray (VerSoX) Beamline at Diamond Light Source. Synchrotron Radiation News 35 (2022), p. 39-47
  doi: 10.1080/08940886.2022.2082181
  Open Access
• 
  Hages, C.J.; Levcenco, S.; Miskin, C.K.; Alsmeier, J.H.; Abou-Ras, D.; Wilks, R.G.; Bär, M.; Unold, T.; Agrawal, R.: Improved performance of Ge-alloyed CZTGeSSe thin-film solar cells through control of elemental losses. Progress in Photovoltaics 23 (2015), p. 376–384
  doi: 10.1002/pip.2442
• 
  Handick, E.; Reinhard, P.; Alsmeier, J.-H.; Köhler, L.; Pianezzi, F.; Krause, S.; Gorgoi, M.; Ikenaga, E.; Koch, N.; Wilks, R.G.; Buecheler, S.; Tiwari, A.N.; Bär, M.: Potassium Postdeposition Treatment-Induced Band Gap Widening at Cu(In,Ga)Se₂ Surfaces – Reason for Performance Leap? ACS Applied Materials & Interfaces 7 (2015), p. 27414-27420
  doi: 10.1021/acsami.5b09231
• 
  Handick, E.; Reinhard, P.; Wilks, R.G.; Pianezzi, F.; Félix, R.; Gorgoi, M.; Kunze, T.; Buecheler, S.; Tiwari, A.N.; Bär, M.: NaF/KF post-deposition treatments and their influence on the structure of Cu(In,Ga)Se₂ absorber surfaces. In: IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2016IEEE, 2016. - ISBN 978-1-5090-2725-5, p. 17-21
  doi: 10.1109/PVSC.2016.7749400
  Open Access
• 
  Handick, E.; Reinhard, P.; Wilks, R.G.; Pianezzi, F.; Kunze, T.; Kreikemeyer-Lorenzo, D.; Weinhardt, L.; Blum, M.; Yang, W.; Gorgoi, M.; Ikenaga, E.; Gerlach, D.; Ueda, S.; Yamashita, Y.; Chikyow, T.; Heske, C.; Buecheler, S.; Tiwari, A.N.; Bär, M.: Formation of a K-In-Se Surface Species by NaF/KF Postdeposition Treatment of Cu(In,Ga)Se₂ Thin-Film Solar Cell Absorbers. ACS Applied Materials & Interfaces 9 (2017), p. 3581-3589
  doi: 10.1021/acsami.6b11892
  Open Access
• 
  Handick, Evelyn: Surface and Interface Characterization by X-ray and Electron Spectroscopies - Revealing the Peculiarities of Cu(In,Ga)Se₂ Chalcopyrite and CH₃NH₃PbI_3-xCl_x Perovskite-based Thin-film Solar Cell Structures. , Cottbus, Brandenburgische Technische Universität (BTU), Diss., 2016
  https://opus4.kobv.de/opus4-btu/files/4243/Handick_Evelyn.pdf
  Open Access
• 
  Hanks, D.; Weir, M.; Horsley, K.; Hofmann, T.; Weinhardt, L.; Bär, M.; Barricklow, K.; Kobyakov, P.; Sampath, W.; Heske, C.: Photoemission Study of CdTe Surfaces After Low-Energy Ion Treatments. In: 38th IEEE Photovoltaic Specialists Conference (PVSC 2012) : Austin, Texas, USA, 3 - 8 June 2012.Piscataway, NJ: IEEE, 2012. - ISBN 978-1-467-30064-3, p. 000396-000405
• 
  Hartmann, C.; Brandt, R.E.; Baranowski, L.L.; Köhler, L.; Handick, E.; Félix, R.; Wilks, R.G.; Zakutayev, A.; Buonassisi, T.; Bär, M.: Chemical and electronic structure of the heavily intermixed (Cd,Zn)S:Ga/CuSbS₂ interface. Faraday Discussions 239 (2022), p. 130-145
  doi: 10.1039/d2fd00056c
  Open Access
• 
  Hartmann, C.; Gupta, S.; Bendikov, T.; Kozina, X.; Kunze, T.; Félix, R.; Hodes, G.; Wilks, R.G.; Cahen, D.; Bär, M.: Impact of SnF₂ addition on the chemical and electronic surface structure of CsSnBr₃. ACS Applied Materials & Interfaces 12 (2020), p. 12353-12361
  doi: 10.1021/acsami.9b22967
  Open Access
• 
  Hartmann, C.; Sadoughi, G.; Felix, R.; Handick, E.; Klemm, H.W.; Peschel, G.; Madej, E.; Fuhrich, A.B.; Liao, X.; Raoux, S.; Abou-Ras, D.; Wargulski, D.; Schmidt, Th.; Wilks, R.G.; Snaith, H.; Bär, M.: Spatially-resolved insight into the chemical and electronic structure of solution processed perovskites – why to (not) worry about pin-holes. Advanced Materials Interfaces 5 (2018), p. 1701420/1-9
  doi: 10.1002/admi.201701420
  Open Access (external provider)
• 
  Hartmann, Claudia: Surface and interface characterization of CH₃NH₃PbI_3–xCl_x and CsSnBr₃ perovskite based thin-film solar cell structures. , Cottbus, Brandenburgische Technische Universität (BTU), Diss., 2018
  https://opus4.kobv.de/opus4-btu/frontdoor/index/index/docId/4635
  Open Access
• 
  Hase, H.; O'Neill, K.; Frisch, J.; Opitz, A.; Koch, N.; Salzmann, I.: Unraveling the Microstructure of Molecularly Doped Poly(3-hexylthiophene) by Thermally Induced Dedoping. The Journal of Physical Chemistry C 122 (2018), p. 25893-25899
  doi: 10.1021/acs.jpcc.8b08591
• 
  Hauschild, D.; Meyer, F.; Benkert, A.; Kreikemeyer-Lorenzo, D.; Dalibor, T.; Palm, J.; Blum, M.; Yang, W.; Wilks, R.G.; Bär, M.; Reinert, F.; Heske, C.; Weinhardt, L.: Improving performance by Na doping of a buffer layer-chemical and electronic structure of the In_xS_y:Na/CuIn(S,Se)₂ thin-film solar cell interface. Progress in Photovoltaics 26 (2018), p. 359-366
  doi: 10.1002/pip.2993
• 
  Hauschild, D.; Meyer, F.; Benkert, A.; Kreikemeyer-Lorenzo, D.; Pohlner, S.; Palm, J.; Blum, M.; Yang, W.; Wilks, R.G.; Bär, M.; Heske, C.; Weinhardt, L.; Reinert, F.: Annealing-Induced Effects on the Chemical Structure of the In₂S₃/Culn(S,Se)₂ Thin-Film Solar Cell Interface. The Journal of Physical Chemistry C 119 (2015), p. 10412-10416
  doi: 10.1021/acs.jpcc.5b01622
• 
  Herrera, G.; Jiménez-Mier, J.; Wilks, R.; Moewes, A.; Yang, W.; Denlinger, J.: Excited states in yttrium orthovanadate YVO₄ measured by soft X-ray absorption spectroscopy. Journal of Materials Science 48 (2013), p. 6437-6444
  doi: 10.1007/s10853-013-7445-z
• 
  Heske, C.; Weinhardt, L.; Bär, M.: X-Ray and Electron Spectroscopy Studies of Oxide Semiconductors for Photoelectrochemical Hydrogen Production. In: Vayssieres, L. [Ed.] : On solar hydrogen & nanotechnologySingapore: Wiley, 2009. - ISBN 978-0-470-82397-2, p. 143-161
• 
  Hofmann, T.; Yu, T.H.; Folse, M.; Weinhardt, L.; Bär, M.; Zhang, Y.; Merinov, B.V.; Myers, D.J.; Goddard, W.A.; Heske, C.: Using Photoelectron Spectroscopy and Quantum Mechanics to Determine d-Band Energies of Metals for Catalytic Applications. The Journal of Physical Chemistry C 116 (2012), p. 24016-24026
  doi: 10.1021/jp303276z
  Open Access (external provider)
• 
  Hofmann, T.; Yu, T.H.; Folse, M.; Weinhardt, L.; Bär, M.; Zhang, Y.; Merinov, B.V.; Myers, D.J.; Goddard, W.A.; Heske, C.: Reply to "Comment on 'Using Photoelectron Spectroscopy and Quantum Mechanics to Determine d-Band Energies of Metals for Catalytic Applications'". The Journal of Physical Chemistry C 117 (2013), p. 6916-6917
  doi: 10.1021/jp401620e
• 
  Hongtao, Y.; Siebert, A.; Mei, S.; Garcia-Diez, R.; Felix, R.; Quan, T.; Xu, Y.; Frisch, J.; Wilks, R.; Bär, M.; Pei, C.; Lu, Y.: Electrochemical Realization of 3D Interconnected MoS3/PPy Nanowire Frameworks as Sulfur-Equivalent Cathode Materials for Li-S Batteries. Energy & Environmental Materials 7 (2024), p. e12539/1-9
  doi: 10.1002/eem2.12539
  Open Access
• 
  Horsley, K.; Beal, R.J.; Wilks, R.G.; Blum, M.; Haeming, M.; Hanks, D.A.; Weir, M.G.; Hofmann, T.; Weinhardt, L.; Bär, M.; Potter, B.G.; Heske, C.: Impact of annealing on the chemical structure and morphology of the thin-film CdTe/ZnO interface. Journal of Applied Physics 116 (2014), p. 024312/1-12
  doi: 10.1063/1.4890235
• 
  Horsley, K.; Pookpanratana, S.; Krause, S.; Hofmann, T.; Blum, M.; Weinhardt, L.; Bär, M.; George, K.; Van Duren, J.; Jackrel, D.; Heske, C.: Electronic and chemical properties of non-vacuum deposited chalcopyrite solar cells. In: IEEE [Ed.] : 37th IEEE Photovoltaic Specialists Conference, Washington, June 19-24, 2011Piscataway, NJ, 2011. - ISBN 978-1-4244-9965-6, p. 000374-000378
• 
  Horsley, K.; Wilks, R.G.; Hanks, D.; Pookpanratana, S.; Blum, M.; Yang, W.; Paudel, N.; Compaan, A.; Baer, M.; Weinhardt, L.; Heske, C.: Chemical Surface and Interface Properties of Differently Stressed (Au/Cu/) CdTe/CdS Thin-film Solar Cell Structures. In: 38th IEEE Photovoltaic Specialists Conference (PVSC), 2012 : 3 - 8 June 2012, Austin Convention Center, Austin, TexasPiscataway, NJ: IEEE, 2012. - ISBN 978-1-4673-0066-7, p. 400-405
  doi: 10.1109/PVSC.2012.6317644
• 
  Hsieh, T.E.; Frisch, J.; Wilks, R.G.; Bär, M.: Unravelling the Surface Oxidation-Induced Evolution of the Electronic Structure of Gallium. ACS Applied Materials & Interfaces 15 (2023), p. 47725–47732
  doi: 10.1021/acsami.3c09324
  Open Access
• 
  Hsieh, T.E.; Maisel, S.; Wittkämper, H.; Frisch, J.; Steffen, J.; Wilks, R.G.; Papp, C.; Görling, A.; Bär, M.: Unraveling the Effect of Rh Isolation on Shallow d States of Gallium-Rhodium Alloys. The Journal of Physical Chemistry C 127 (2023), p. 20484-20490
  doi: 10.1021/acs.jpcc.3c04350
  Open Access
• 
  Iqbal, Z.; Félix, R.; Musiienko, A.; Thiesbrummel, J.; Köbler, H.; Gutierrez-Partida, E.; Gries, T.W.; Hüsam, E.; Saleh, A.; Wilks, R.G.; Zhang, J.; Stolterfoht, M.; Neher, D.; Albrecht, S.; Bär, M.; Abate, A.; Wang, Q.: Unveiling the Potential of Ambient Air Annealing for Highly Efficient Inorganic CsPbI3 Perovskite Solar Cells. Journal of the American Chemical Society 146 (2024), p. 4642-4651
  doi: 10.1021/jacs.3c11711
  Open Access
• 
  Jäckle, S.; Liebhaber, M.; Niederhausen, J.; Büchele, M.; Félix, R.; Wilks, R.; Baer, M.; Lips, K.; Christiansen, S.: Unveiling the hybrid n-Si/PEDOT:PSS interface. ACS Applied Materials & Interfaces 8 (2016), p. 8841–8848
  doi: 10.1021/acsami.6b01596
  Open Access (external provider)
• 
  Jeschull, F.; Kataev, E.; Panasenko, I.; Njel, C.; Félix, R.; Maibach, J.: Why Half-Cell Samples Provide Limited Insight Into the Aging Mechanisms of Potassium Batteries. Advanced Energy Materials early view (2024), p. 2403811
  doi: 10.1002/aenm.202403811
• 
  Jeschull, F.; Maibach, J.; Felix, R.; Wohlfahrt-Mehrens, M.; Edström, K.; Memm, M.; Brandell, D.: Solid Electrolyte Interphase (SEI) of Water-Processed Graphite. ACS Applied Energy Materials 1 (2018), p. 5176-5188
  doi: 10.1021/acsaem.8b00608
• 
  Jeyachandran, Y. L.; Meyer, F.; Benkert, A.; Bär, M.; Blum, M.; Yang, W.; Reinert, F.; Heske, C.; Weinhardt, L.; Zharnikov, M.: Investigation of the Ionic Hydration in Aqueous Salt Solutions by Soft X-ray Emission Spectroscopy. The Journal of Physical Chemistry B 120 (2016), p. 7687-7695
  doi: 10.1021/acs.jpcb.6b03952
• 
  Jeyachandran, Y.L.; Meyer, F.; Nagarajan, S.; Benkert, A.; Bär, M.; Blum, M.; Yang, Y.; Reinert, F.; Heske, C.; Weinhardt, L.; Zharnikov, M.: Ion-solvation-induced molecular reorganization in liquid water probed by resonant inelastic soft x-ray scattering. The Journal of Physical Chemistry Letters 5 (2014), p. 4143-4148
  doi: 10.1021/jz502186a
  Open Access (external provider)
• 
  Jimenez, C.; Paeplow, M.; Kamm, P.; Neu, T.; Klaus, M.; Wagener, G.; Banhart, J.; Genzel, C.; Garci­a-Moreno, F.: Simultaneous X-ray radioscopy/tomography and energy-dispersive diffraction applied to liquid aluminium alloy foams. Journal of Synchrotron Radiation 25 (2018), p. 1790-1796
  doi: 10.1107/S1600577518011657
• 
  Johansson, F.O.L.; Cappel, U.B.; Fondell, M.; Han, Y.; Gorgoi, M.; Leifer, K.; Lindblad, A.: Tailoring ultra-fast charge transfer in MoS₂. Physical Chemistry Chemical Physics 22 (2020), p. 10335-10342
  doi: 10.1039/D0CP00857E
  Open Access
• 
  Kamps, T.; Abo-Bakr, M.; Alberdi-Esuain, B.; Birke, T.; Echevarria, P.; Ergenlik, E.; Fleischhauer, R.; Frahm, A.; Huck, H.; Klemz, G.; Knobloch, J.; Kolbe, J.; Kuehn, J.; Kuske, B. C.; Mistry, S.; Rehm, G.; Rotterdam, S.; Schappeit, O.; Tamashevich, Y.; Ushakov, A.; Voelker, J.; Wang, C.: Accelerator physics experiments at the versatile SRF photoinjector of SEALab. In: Ralph Assmann [Ed.] : IPAC'23 : Proceedings of the 14th International Particle Accelerator Conference ; Venice, Italy from 7 to 12 May 2023Geneve: JACoW, 2023. - ISBN 978-3-95450-231-8, p. TUPL160/1-4
  Open Access
• 
  Klaproth, T.; Aswartham, S.; Shemerliuk, Y.; Selter, S.; Janson, O.; Van Den Brink, J.; Büchner, B.; Knupfer, M.; Pazek, S.; Mikhailova, D.; Efimenko, A.; Hayn, R.; Savoyant, A.; Gubanov, V.; Koitzsch, A.: Origin of the Magnetic Exciton in the van der Waals Antiferromagnet NiPS₃. Physical Review Letters 131 (2023), p. 256504/1-7
  doi: 10.1103/physrevlett.131.256504
• 
  Koch, V.M.; Charvot, J.; Cao, Y.; Hartmann, C.; Wilks, R.G.; Kundrata, I.; Mínguez-Bacho, I.; Gheshlaghi, N.; Hoga, F.; Stubhan, T.; Alex, W.; Pokorný, D.; Topraksal, E.; Smith, A.S.; Brabec, C.J.; Bär, M.; Guldi, D.M.; Barr, M.K.S.; Bures, F.; Bachmann, J.: Sb₂Se₃ Thin-Film Growth by Solution Atomic Layer Deposition. Chemistry of Materials 34 (2022), p. 9392-9401
  doi: 10.1021/acs.chemmater.2c01550
  Open Access
• 
  Köhler, Leonard: Surface and interface study of kesterite-based and related thin-film solar cell structures. , Cottbus, Brandenburgische Technische Universität (BTU), Diss., 2017
  https://opus4.kobv.de/opus4-btu/frontdoor/index/index/docId/4354
  Open Access
• 
  Lauermann, I.; Bär, M.; Fischer, C.-H.: Synchrotron-based spectroscopy for the characterization of surfaces and interfaces in chalcopyrite thin-film solar cells. Solar Energy Materials and Solar Cells 95 (2011), p. 1495-1508
  doi: 10.1016/j.solmat.2010.12.042
• 
  Lehmann, J.; Lehmann, S.; Lauermann, I.; Rissom, T.; Kaufmann, C.A.; Lux-Steiner, M.C.; Bär, M.; Sadewasser, S.: Reliable wet-chemical cleaning of natively oxidized high-efficiency Cu(In,Ga)Se₂ thin-film solar cell absorbers. Journal of Applied Physics 116 (2014), p. 233502/1-11
  doi: 10.1063/1.4903976
  Open Access (external provider)
• 
  Leon, A.; Fiedler, A.; Blum, M.; Benkert, A.; Meyer, F.; Yang, W.; Bär, M.; Scheiba, F.; Ehrenberg, H.; Weinhardt, L.; Heske, C.: Valence Electronic Structure of Li₂O₂, Li₂O, Li₂CO₃, and LiOH Probed by Soft X-ray Emission Spectroscopy. The Journal of Physical Chemistry C 121 (2017), p. 5460-5466
  doi: 10.1021/acs.jpcc.6b11119
• 
  Leon, A.; Fiedler, A.; Blum, M.; Yang, W.; Bär, M.; Scheiba, F.; Ehrenberg, H.; Heske, C.; Weinhardt, L.: Electrolyte Stability and Discharge Products of an Ionic-Liquid-Based Li-O2 Battery Revealed by Soft X Ray Emission Spectroscopy. The Journal of Physical Chemistry C 123 (2019), p. 30827-30832
  doi: 10.1021/acs.jpcc.9b08777
  Open Access
• 
  Lewis, T.; Winter, B.; Stern, A.C.; Bär, M.D.; Mundy, C.J.; Tobias, D.J.; Hemminger, J.C.: Dissociation of Strong Acid Revisited: X-ray Photoelectron Spectroscopy and Molecular Dynamics Simulations of HNO₃ in Water. The Journal of Physical Chemistry B 115 (2011), p. 9445 - 9451
  doi: 10.1021/jp205510q
• 
  Liao, X.; Habisreutinger, S.N.; Wiesner, S.; Sadoughi, G.; Abou-Ras, D.; Gluba, M.A.; Wilks, RG.; Félix, R.; Rusu, M.; Nicholas, R.J.; Snaith, H.J.; Bär, M.: Chemical Interaction at the MoO₃/CH₃NH₃PbI_3-xCl_x Interface. ACS Applied Materials & Interfaces 13 (2021), p. 17085-17092
  doi: 10.1021/acsami.1c01284
  Open Access
• 
  Liao, X.; Jeong, A.R.; Wilks, R.G.; Wiesner, S.; Rusu, M.; Bär, M.: X-ray irradiation induced effects on the chemical and electronic properties of MoO₃ thin films. Journal of Electron Spectroscopy and Related Phenomena 212 (2016), p. 50–55
  doi: 10.1016/j.elspec.2016.08.004
• 
  Liao, X.; Jeong, A.R.; Wilks, R.G.; Wiesner, S.; Rusu, M.; Felix, R.; Xiao, T.; Hartmann, C.; Bär, M.: Tunability of MoO₃ thin-film properties due to annealing – in-situ monitored by hard x-ray photoemission. ACS Omega 4 (2019), p. 10985-10990
  doi: 10.1021/acsomega.9b01027
  Open Access
• 
  Lips, K.; Schulze, T. F.; Starr, D.E.; Bär, M.; Wilks, R.G.; Fenske, F.; Ruske, F.; Reiche, M.; van de Krol, R.; Reichardt, G.; Schäfers, F.; Hendel, S.; Follath, R.; Bahrdt, J.; Peredkov, S.; DeBeer, S.; Hävecker, M.; Knop-Gericke, A.; Rau, B.; Kaufmann, C.A.; Schlatmann, R.; Schlögl, R.; Rech, B.; Raoux, S.: EMIL: The energy materials in-situ laboratory Berlin - a novel characterization facility for photovoltaic and energy materials. In: Proceedings of the 31st European Photovoltaic Solar Energy Conference and Exhibition - Hamburg 2015Munich: WIP, 2015. - ISBN 3-936338-39-6, p. 1AO.2.1/25-28
  https://www.eupvsec-proceedings.com/proceedings/dvd.html?TOC=2015
  http://www.eupvsec-proceedings.com/proceedings?fulltext=lips&paper=34827
  doi: 10.4229/EUPVSEC20152015-1AO.2.1
  Open Access
• 
  Lips, K.; Starr, D.; Bär, M.; Schulze, T.; Fenske, F.; Christiansen, S.; van de Krol, R.; Raoux, S.; Reichardt, G.; Schäfers, F.; Hendel, S.; Follath, R.; Bahrdt, J.; Scheer, M.; Wüstefeld, G.; Kuske, P.; Hävecker, M.; Knop-Gerickce, A.; Schlögl, R.; Rech, B.: EMIL: The Energy Materials In Situ Laboratory Berlin. In: IEEE 40th Photovoltaic Specialist Conference (PVSC) 2014 : Denver, Colorado, USA, 8 - 13 June 2014IEEE, 2014. - ISBN 978-1-4799-4398-2, p. 698-700
  doi: 10.1109/PVSC.2014.6925017
  Open Access (external provider)
• 
  Liu, C.; Félix, R.; Forberich, K.; Du, X.; Heumüller, T.; Matt, G.J.; Gu, E.; Wortmann, J.; Zhao, Y.; Cao, Y.; He, Y.; Ying, L.; Hauser, A.; Oszajca, M.F.; Hartmeier, B.; Rossier, M.; Lüchinger, N.A.; Liu, Y.-S.; Guo, J.; Nie, K.; Wilks, R.G.; Bachmann, J.; Bär, M.; Li, N.; Brabec, C.J.: Utilizing the unique charge extraction properties of antimony tin oxide nanoparticles for efficient and stable organic photovoltaics. Nano Energy 89 (2021), p. 106373/1-10
  doi: 10.1016/j.nanoen.2021.106373
  Open Access
• 
  Mäkelä, J.; Tuominen, M.; Dahl, J.; Granroth, S.; Yasir, M.; Lehtiö, J.-P.; Uusitalo, R.-R.; Kuzmin, M.; Punkkinen, M.; Laukkanen, P.; Kokko, K.; Félix, R.; Lastusaari, M.; Polojärvi, V.; Lyytikäinen, J.; Tukiainen, A.; Guina, M.: Decreasing Defect-State Density of Al₂O₃/GaxIn_1-xAs Device Interfaces with InO_x Structures. Advanced Materials Interfaces 4 (2017), p. 1700722/1-7
  doi: 10.1002/admi.201700722
• 
  Malitckaya, M.; Kunze, T.; Komsa, H.; Havu, V.; Handick, E.; Wilks, R.G.; Bär, M.; Puska, M.: Alkali Postdeposition Treatment-Induced Changes of the Chemical and Electronic Structure of Cu(In,Ga)Se₂ Thin-Film Solar Cell Absorbers: A First-Principle Perspective. ACS Applied Materials & Interfaces 11 (2019), p. 3024-3033
  doi: 10.1021/acsami.8b18216
  Open Access
• 
  Mansilla, Y.; Arce, M.D.; González-Oliver, C.; Basbus, J.; Troiani, H.; Serquis, A.: Characterization of stabilized ZrO₂ thin films obtained by sol-gel method. Applied Surface Science 569 (2021), p. 150787/1-9
  doi: 10.1016/j.apsusc.2021.150787
• 
  Mei, S.; Siebert, A.; Xu, Y.; Quan, T.; Garcia Diez, R.; Bär, M.; Haertel, P.; Abendroth, T.; Doerfler, S.; Kaskel, S.; Lu, Y.: Large-Scale Synthesis of Nanostructured Carbon-Ti4O7 Hollow Particles as Efficient Sulfur Host Materials for Multilayer Lithium-Sulfur Pouch Cells. Batteries & Supercaps 5 (2022), p. e202100398/1-11
  doi: 10.1002/batt.202100398
  Open Access
• 
  Menz, B.; Braig, C.; Bräuninger, H.; Burwitz, V.; Hartner, G.; Predehl, P.: Characterising X-ray optics with a collimated X-ray beam: The zone plate approach. In: Stephen L. O'Dell [Ed.] : Optics for EUV, x-ray, and gamma-ray astronomy VI : 25 - 29 August 2013, San Diego, California, United States ; [the Conference Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI ... as part of the SPIE Optics + Photonics 2013 International Symposium Optical Engineering + Applications]Bellingham, Wash.: SPIE, 2013 Proceedings of SPIE ; 8861. - ISBN 978-0-8194-9711-6, p. 88611L/1-6
  doi: 10.1117/12.2023289
• 
  Menz, B.; Braig, C.; Bräuninger, H.; Burwitz, V.; Hartner, G.; Predehl, P.: Large area x-ray collimator-the zone plate approach. Applied Optics 54 (2015), p. 7851-7858
  doi: 10.1364/AO.54.007851
• 
  Meyer, F.; Blum, M.; Benkert, A.; Hauschild, D.; Jeyachandran, Y.; Wilks, R.; Yang, W.; Bär, M.; Reinert, F.; Heske, C.; Zharnikov, M.; Weinhardt, L.: Site-specific electronic structure of imidazole and imidazolium in aqueous solutions. Physical Chemistry Chemical Physics 20 (2018), p. 8302-8310
  doi: 10.1039/C7CP07885D
• 
  Meyer, F.; Blum, M.; Benkert, A.; Hauschild, D.; Jeyachandran, Y.L.; Wilks, R.G.; Yang, W.; Bär, M.; Heske, C.; Reinert, F.; Zharnikov, M.; Weinhardt, L.: X-ray Emission Spectroscopy of Proteinogenic Amino Acids at All Relevant Absorption Edges. The Journal of Physical Chemistry B 121 (2017), p. 6549-6556
  doi: 10.1021/acs.jpcb.7b04291
• 
  Meyer, F.; Blum, M.; Benkert, A.; Hauschild, D.; Nagarajan, S.; Wilks, R.G.; Andersson, J.; Yang, W.; Zharnikov, M.; Bär, M.; Heske, C.; Reinert, F.; Weinhardt, L.: “Building-block picture” of the electronic structure of aqueous cysteine derived from resonant inelastic soft x-ray scattering. The Journal of Physical Chemistry B 118 (2014), p. 13142-13150
  doi: 10.1021/jp5089417
• 
  Meyer, F.; Weinhardt, L.; Blum, M.; Bär, M.; Wilks, R.G.; Yang, W.; Heske, C.; Reinert, F.: Non-equivalent carbon atoms in the resonant inelastic soft X-ray scattering map of cysteine. The Journal of Chemical Physics 138 (2013), p. ARTN 034306
  doi: 10.1063/1.4774059
• 
  Mezher, M.; Garris, R.; Mansfield, L.; Blum, M.; Hauschild, D.; Horsley, K.; Duncan, D.; Yang, W.; Bär, M.; Weinhardt, L.; Ramanathan, K.; Heske, C.: Soft x-ray spectroscopy of a complex heterojunction in high-efficiency thin-film photovoltaics: Intermixing and Zn speciation at the Zn(O,S)/Cu(In,Ga)Se₂ interface. ACS Applied Materials & Interfaces 8 (2016), p. 33256-33263
  doi: 10.1021/acsami.6b09245
  Open Access (external provider)
• 
  Mezher, M.; Garris, R.; Mansfield, L.M.; Horsley, K.; Weinhardt, L.; Duncan, D.A.; Blum, M.; Rosenberg, S.G.; Bär, M.; Ramanathan, K.; Heske, C.: Electronic structure of the Zn(O,S)/Cu(In,Ga)Se₂ thin-film solar cell interface. Progress in Photovoltaics 24 (2016), p. 1142-1148
  doi: 10.1002/pip.2764
• 
  Mikhlin, Y.; Nasluzov, V.; Romanchenko, A.; Tomashevich, Y.; Shor, A.; Felix Duarte, R.: Layered structure of the near-surface region of oxidized chalcopyrite (CuFeS2): hard X-ray photoelectron spectroscopy, X-ray absorption spectroscopy and DFT+U studies. Physical Chemistry Chemical Physics 19 (2017), p. 2749-2759
  doi: 10.1039/c6cp07598c
• 
  Mikhlin, Yu.; Tomashevich, Ye.; Vorobyev, S.; Saikova, S.; Romanchenko, A.; Felix, R.: Hard X-ray photoelectron and X-ray absorption spectroscopy characterization of oxidized surfaces of iron sulfides. Applied Surface Science 387 (2016), p. 796–804
  doi: 10.1016/j.apsusc.2016.06.190
  Open Access (external provider)
• 
  Mu, R.; Steigert, A.; Lin, N.; Wilks, R.; Baer, M.; Zhang, Y.: The chemical structure of the ZnO/SiC heterointerface as revealed by electron spectroscopies. Journal of Physics D 48 (2015), p. 305304/1-7
  doi: 10.1088/0022-3727/48/30/305304
• 
  Mu, R.; Zheng, Y.; Lambertz, A.; Wilks, R.G.; Bär, M.; Zhang, Y.: A spectrum deconvolution method based on grey relational analysis. Results in Physics 23 (2021), p. 104031/1-6
  doi: 10.1016/j.rinp.2021.104031
  Open Access
• 
  Müller, R.; Görzig, H.; Hartmann, G.; Kiefer, K.; Viefhaus, J.; Ovsyannikov, R; Smith, W.; Vadilonga, S.; Viefhaus, J.; Allan, D.: Experimental Data Taking and Management: The Upgrade Process at BESSY II and HZB. In: Andy Götz ... [Ed.] : ICALEPCS 2023 : Proceedings of the 19th International Conference on Accelerator and Large Experimental Physics Control Systems, in Cape Town, South Africa, 7-13 October 2023JACoW, 2023. - ISBN 978-3-95450-238-7, p. MOCPL02/1-6
  Open Access
• 
  Nicoara, N.; Kunze, T.; Jackson, P.; Hariskos, D.; Duarte, R.; Wilks, R.; Witte, W.; Bär, M.; Sadewasser, S.: Evidence for Chemical and Electronic Nonuniformities in the Formation of the Interface of RbF-Treated Cu(In,Ga)Se₂ with CdS. ACS Applied Materials & Interfaces 9 (2017), p. 44173-44180
  doi: 10.1021/acsami.7b12448
  Open Access
• 
  Nordh, T.; Younesi, R.; Hahlin, M.; Felix Duarte, R.; Tengstedt, C.; Brandell, D.; Edstrom, K.: Manganese in the SEI Layer of Li₄Ti₅O₁₂ Studied by Combined NEXAFS and HAXPES Techniques. The Journal of Physical Chemistry C 120 (2016), p. 3206-3213
  doi: 10.1021/acs.jpcc.5b11756
• 
  Oltean, V.A.; Philippe, B.; Renault, S.; Felix Duarte, R.; Rensmo, H.; Brandell, D.: Investigating the Interfacial Chemistry of Organic Electrodes in Li- and Na-Ion Batteries. Chemistry of Materials 28 (2016), p. 8742-8751
  doi: 10.1021/acs.chemmater.6b04086
• 
  Parvan, V.; Mizrak, A.; Majumdar, I.; Ümsür, B.; Calvet, W.; Greiner, D.; Kaufmann, C.A.; Dittrich, T.; Avancini, E.; Lauermann, I.: Cu(In,Ga)Se₂ surface treatment with Na and NaF: A combined photoelectron spectroscopy and surface photovoltage study in ultra-high vacuum. Applied Surface Science 444 (2018), p. 436-441
  doi: 10.1016/j.apsusc.2018.03.014
  Open Access
• 
  Pascual, J.; Flatken, M.; Félix, R.; Li, G; Turren-Cruz, S.H.; Aldamasy, M.H.; Hartmann, C.; Li, M.; Di Girolamo, D.; Nasti, G.; Hüsam, E.; Wilks, R.G.; Dallmann, A.; Bär, M.; Hoell, A.; Abate, A.: Fluoride Chemistry in Tin Halide Perovskites. Angewandte Chemie - International Edition 60 (2021), p. 21583-21591
  doi: 10.1002/anie.202107599
  Open Access
• 
  Pazek, S.; Efimenko, A.; Félix, R.; Roslova, M.; Querebillo, C.J.; Gorbunov, M.V.; Ovchinnikov, A.; Koitzsch, A.; Escudero, C.; Shemerliuk, Y.; Aswartham, S.; Büchner, B.; Omar, A.; Mikhailova, D.: Charge compensation in a layered van der Waals NiPS₃ host through various cationic intercalations. Journal of Materials Chemistry A 12 (2023), p. 3523-3541
  doi: 10.1039/d3ta06196e
  Open Access
• 
  Pfrommer, J.; Azarpira, A.; Steigert, A.; Olech, K.; Menezes, P.W.; Felix Duarte, R.; Liao, X.; Wilks, R.G.; Bär, M.; Schedel-Niedrig, T.; Driess, M.: Active and Stable Nickel-Based Electrocatalysts Based on the ZnO:Ni System for Water Oxidation in Alkaline Media. ChemCatChem 9 (2017), p. 672-676
  doi: 10.1002/cctc.201600922
• 
  Phung, N.; Félix, R.; Meggiolaro, D.; Al-Ashouri, A.; Sousa e Silva, G.; Hartmann, C.; Hidalgo, J.; Köbler, H.; Mosconi, E.; Lai, B.; Gunder, R.; Li, M.; Wang, K.-L.; Wang, Z.-K.; Nie, K.; Handick, E.; Wilks, R.G.; Marquez, J.A.; Rech, B.; Unold, T.; Correa-Baena, J.P.; Albrecht, S.; De Angelis, F.; Bär, M.; Abate, A.: The doping mechanism of halide perovskite unveiled by alkaline earth metals. Journal of the American Chemical Society 142 (2020), p. 2364-2374
  doi: 10.1021/jacs.9b11637
  Open Access
• 
  Pistor, P.; Mainz, R.; Heinemann, M.D.; Unold, T.; Scheer, R.: In Situ Real-Time Characterization of Thin-Film Growth. In: In situ real-time characterization of thin-film growthWeinheim: Wiley, 2016. - ISBN 978-3-527-41003-3, p. 441-468
  doi: 10.1002/9783527699025.ch16
• 
  Platzer-Björkman, C.; Barreau, N.; Bär, M.; Choubrac, L.; Grenet, L.; Heo, J.; Kubart, T.; Mittiga, A.; Sanchez, Y.; Scragg, J.; Sinha, S.; Valentini, M.: Back and front contacts in kesterite solar cells: state-of-the-art and open questions. JPhys Energy 1 (2019), p. 044005/1-22
  doi: 10.1088/2515-7655/ab3708
  Open Access
• 
  Pookpanratana, S.; France, R.; Blum, M.; Bell, A.; Bär, M.; Weinhardt, L.; Zhang, Y.; Hofmann, T.; Fuchs, O.; Yang, W.; Denlinger, J.D., Mulcahy, S.; Moustakas, T.D.; Heske C.: Chemical structure of vanadium-based contact formation on n-AlN. Journal of Applied Physics 108 (2010), p. 024906/1-6
  doi: 10.1063/1.3456060
• 
  Pookpanratana, S.; France, R.; Felix, R.; Wilks, R.; Weinhardt, L.; Hofmann, T.; Tati Bismaths, L.; Mulcahy, S.; Kronast, F.; Moustakas, T. D.; Bär, M.; Heske, C.: Microstructure of vanadium-based contacts on n-type GaN. Journal of Physics D 45 (2012), p. 105401/1-6
  doi: 10.1088/0022-3727/45/10/105401
• 
  Pookpanratana, S.; Khan, F.; Zhang, Y.; Heske, C.; Weinhardt, L.; Bär, M.; Liu, X.; Paudel, N.; Compaan A.: Chemical structure of buried interfaces in CdTe thin film solar cells. In: 35th IEEE Photovoltaic Specialists Conference (PVSC 2010) : Honolulu, Hawaii, USA, 20 - 25 June 2010Piscataway, NJ: IEEE, 2010. - ISBN 978-1-424-45890-5, p. 24-27
• 
  Pookpanratana, S.; Liu, X.; Paudel, N.R.; Weinhardt, L.; Bär, M.; Zhang, Y.; Ranasinghe, A.; Khan, F.; Blum, M.; Yang, W.; Compaan, A.D.; Heske C.: Effects of postdeposition treatments on surfaces of CdTe/CdS solar cells. Applied Physics Letters 97 (2010), p. 172109/1-3
  doi: 10.1063/1.3505155
• 
  Pookpanratana, S.; Repins, I.; Bär, M.; Félix, R.; Blum, M.; Weinhardt, L.; Yang, W.; Denlinger, J.D.; Contreras, M.A.; Heske, C.: Spectroscopic analysis of the chemical structure at the CdS/Cu(In,Ga)Se₂ interface in high-efficiency solar cell devices. In: 34th IEEE Photovoltaic Specialists Conference (PVSC 2009) 7-12 June 2009, Philadelphia, PA, USA , 2009. - ISBN 978-1-4244-2949-3, p. 1060-1063
  doi: 10.1109/PVSC.2009.5411203
• 
  Pookpanratana, S.; Repins, I.; Bär, M.; Weinhardt, L.; Zhang, Y.; Felix, R.; Blum, M.; Yang, W.; Heske, C.: CdS/Cu(In,Ga)Se₂ interface formation in high-efficiency thin film solar cells. Applied Physics Letters 97 (2010), p. 74101
  doi: 10.1063/1.3481405
• 
  Ralaiarisoa, M.; Frisch, J.; Frégnaux, M.; Cacovich, S.; Yaïche, A.; Rousset, J.; Gorgoi, M.; Ceratti, D.R.; Kodalle, T.; Roncoroni, F.; Guillemoles, J.F.; Etcheberry, A.; Bouttemy, M.; Wilks, R.G.; Bär, M.; Schulz, P.: Influence of X-Ray Irradiation During Photoemission Studies on Halide Perovskite-Based Devices. Small Methods 7 (2023), p. 2300458/1-10
  doi: 10.1002/smtd.202300458
  Open Access (external provider)
• 
  Repins, I.; Mansfield, L.; Kanevce, A.; Jensen, S.; Kuciauskas, D.; Glynn, S.; Barnes, T.; Metzger, W.; Burst, J.; Jiang, C.; Dippo, P.; Harvey, S.; Teeter, G.; Perkins, C.; Egaas, B.; Zakutayev, A.; Alsmeier, J.; Lußky, T.; Korte, L.; Wilks, R.; Bär, M.; Yan, Y.; Lany, S.; Zawadzki, P.; Park, J.-S.; Wei, S.: Wild band edges: The role of bandgap grading and band-edge fluctuations in high-efficiency chalcogenide devices. In: IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2016Piscataway: IEEE, 2016. - ISBN 978-1-5090-2724-8, p. 309-314
  doi: 10.1109/PVSC.2016.7749600
  Open Access (external provider)
• 
  Romanyuk, O.; Paszuk, A.; Bartos, I.; Wilks, R.G.; Nandy, M.; Bombsch, J.; Hartmann, C.; Félix, R.; Ueda, S.; Gordeev, I.; Houdkova, J.; Kleinschmidt, P.; Machek, P.; Bär, M.; Jiricek, P.; Hannappel, T.: Band bending at heterovalent interfaces: Hard X-ray photoelectron spectroscopy of GaP/Si(001) heterostructures. Applied Surface Science 565 (2021), p. 150514/1-13
  doi: 10.1016/j.apsusc.2021.150514
• 
  Romanyuk, O.; Paszuk, A.; Gordeev, I.; Wilks, R.G.; Ueda, S.; Hartmann, C.; Félix, R.; Bär, M.; Schlueter, C.; Gloskovskii, A.; Bartos, I.; Nandy, M.; Houdková, J.; Jirícek, P.; Jaegermann, W.; Hofmann, J.P.; Hannappel, T.: Combining advanced photoelectron spectroscopy approaches to analyse deeply buried GaP(As)/Si(1 0 0) interfaces: Interfacial chemical states and complete band energy diagrams. Applied Surface Science 605 (2022), p. 154630/1-11
  doi: 10.1016/j.apsusc.2022.154630
  Open Access (external provider)
• 
  Romanyuk, O.; Supplie, O.; Paszuk, A.; Stoeckmann, J.P.; Wilks, R.G.; Bombsch, J.; Hartmann, C.; Garcia-Diez, R.; Ueda, S.; Bartos, I.; Gordeev, I.; Houdkova, J.; Kleinschmidt, P.; Bär, M.; Jiricek, P.; Hannappel, T.: Hard X-ray photoelectron spectroscopy study of core level shifts at buried GaP/Si(001) interfaces. Surface and Interface Analysis 52 (2020), p. 933-938
  doi: 10.1002/sia.6829
• 
  Rubio-Govea, R.; Félix, R.; Wilks, R.G.; Bär, M.; Mazzio, K.A.: Understanding the Effects of Primary and Secondary Doping via Post-Treatment of P-Type and N-Type Hybrid Organic–Inorganic Thin Film Thermoelectric Materials. Advanced Electronic Materials 9 (2023), p. 2300076/1-15
  doi: 10.1002/aelm.202300076
  Open Access
• 
  Rusu, M.; Bär, M.; Fuertes Marrón, D.; Lehmann, S.; Schedel-Niedrig, Th.; Lux-Steiner, M.Ch.: Transport properties of CuGaSe2-based thin-film solar cells as a function of absorber composition. Thin Solid Films 519 (2011), p. 7304-7307
  doi: 10.1016/j.tsf.2011.01.185
• 
  Rusu, M.; Wiesner, S.; Würz, R.; Lehmann, S.; Doka-Yamigno, S.; Meeder, A.; Marron, D.F.; Bär, M.; Koteski, V.; Mahnke, H.E.; Arushanov, E.; Beckmann, J.; Höhn, K.; Fritsch, W.; Bohne, W.; Schubert-Bischoff, P.; Heuken, M.; Jager-Waldau, A.; Rumberg, A.; Schedel-Niedrig, T.: CuGaxSey chalcopyrite-related thin films grown by chemical close-spaced vapor transport (CCSVT) for photovoltaic application: Surface- and bulk material properties, oxidation and surface Ge-doping. Solar Energy Materials and Solar Cells 95 (2011), p. 1555 - 1580
  doi: 10.1016/j.solmat.2011.01.016
• 
  Sadoughi, G.; Starr, D.E.; Handick, E.; Stranks, S.D.; Gorgoi, M.; Wilks, R.G.; Bär, M.; Snaith, H.J.: Observation and Mediation of the Presence of Metallic Lead in Organic-Inorganic Perovskite Films. ACS Applied Materials & Interfaces 7 (2015), p. 13440-13444
  doi: 10.1021/acsami.5b02237
• 
  Saito, Y.; Sutou, Y.; Fons, P.; Shindo, S.; Kozina, X.; Skelton, J.; Kolobov, A.; Kobayashi, K.: Electronic Structure of Transition-Metal Based Cu₂GeTe₃ Phase Change Material: Revealing the Key Role of Cu d Electrons. Chemistry of Materials 29 (2017), p. 7440-7449
  doi: 10.1021/acs.chemmater.7b02436
• 
  Salusso, D.; Scarfiello, C.; Efimenko, A.; Pham Minh, D.; Serp, P.; Soulantica, K.; Zafeiratos, S.: Direct Evidence of Dynamic Metal Support Interactions in Co/TiO₂ Catalysts by Near-Ambient Pressure X-ray Photoelectron Spectroscopy. Nanomaterials 13 (2023), p. 2672/1-16
  doi: 10.3390/nano13192672
  Open Access
• 
  Santaya, M.; Jimenez, C.E.; Arce, M.D.; Carbonio, E.A.; Toscani, L.M.; Garcia-Diez, R.; Knop-Gericke, A.; Mogni, L.V.; Bär, M.; Troiani, H.E.: Exsolution versus particle segregation on (Ni,Co)-doped and undoped SrTi_0.3Fe_0.7O_3-δ perovskites: Differences and influence of the reduction path on the final system nanostructure. International Journal of Hydrogen Energy 48 (2023), p. 38842-38853
  doi: 10.1016/j.ijhydene.2023.06.203
• 
  Santaya, M.; Jiménez, C.E.; Troiani, H.E.; Carbonio, E.A.; Arce, M.D.; Toscani, L.M.; Garcia-Diez, R.; Wilks, R.G.; Knop-Gericke, A.; Bär, M.; Mogni, L.V.: Tracking the nanoparticle exsolution/reoxidation processes of Ni-doped SrTi_0.3Fe_0.7O_3-δ electrodes for intermediate temperature symmetric solid oxide fuel cells. Journal of Materials Chemistry A 10 (2022), p. 15554-15568
  doi: 10.1039/d2ta02959f
• 
  Schavkan, A.; Gollwitzer, C.; Garcia-Diez, R.; Krumrey, M.; Minelli, C.; Bartczak, D.; Cuello-Nunez, S.; Goenaga-Infante, H.; Rissler, J.; Sjostrom, E.; Baur, G.B.; Vasilatou, K.; Shard, A.G.: Correction: Number Concentration of Gold Nanoparticles in Suspension: SAXS and spICPMS as Traceable Methods Compared to Laboratory Methods. Nanomaterials 9 (2019), p. 1060/1
  doi: 10.3390/nano9081060
  Open Access (external provider)
• 
  Schavkan, A.; Gollwitzer, C.; Garcia-Diez, R.; Krumrey, M.; Minelli, C.; Bartczak, D.; Cuello-Nuñez, S.; Goenaga-Infante, H.; Rissler, J.; Sjöström, E.; Baur, G.B.; Vasilatou, K.; Shard, A.G.: Number Concentration of Gold Nanoparticles in Suspension: SAXS and spICPMS as Traceable Methods Compared to Laboratory Methods. Nanomaterials 9 (2019), p. 502/1-20
  doi: 10.3390/nano9040502
  Open Access (external provider)
• 
  Schorr, S.; Mainz, R.; Moenig, H.; Lauermann, I.; Bär, M.: The complex material properties of chalcopyrite and kesterite thin-film solar cell absorbers tackled by synchrotron-based analytics. Progress in Photovoltaics 20 (2012), p. 557-567
  doi: 10.1002/pip.1256
• 
  Seymour, J.M.; Gousseva, E.; Bennett, R.A.; Large, A.I.; Held, G.; Hein, D.; Wartner, G.; Quevedo, W.; Seidel, R.; Kolbeck, C.; Clarke, C.J.; Fogarty, R.M.; Bourne, R.A.; Palgrave, R.G.; Hunt, P.A.; Lovelock, K.R.J.: Resonant X-ray photoelectron spectroscopy: identification of atomic contributions to valence states. Faraday Discussions 236 (2022), p. 389-411
  doi: 10.1039/d1fd00117e
  Open Access
• 
  Sharma, S.; Zeeshan, H.M.; Panahi, M.; Jin, Y.; Yan, M.; Jin, Y.; Li, K.; Zeller, P.; Efimenko, A.; Makarova, A.; Smirnov, D.; Paulus, B.; Voloshina, E.; Dedkov, Y.: Stability of van der Waals FePX₃ materials (X: S, Se) for water-splitting applications. 2D Materials 10 (2023), p. 014008/1-14
  doi: 10.1088/2053-1583/ac9c15
  Open Access
• 
  Siebentritt, S.; Avancini, E.; Bär, M.; Bombsch, J.; Bourgeois, E.; Buecheler, S.; Carron, R.; Castro, C; Duguay, S.; Félix, R.; Handick, E.; Hariskos, D.; Havu, V.; Jackson, P.; Komsa, H.-P.; Kunze, T.; Malitckaya, M.; Menozzi, R.; Nesladek, M.; Nicoara, N.; Puska, M.; Raghuwanshi, M.; Pareige, P.; Sadewasser, S.; Sozzi, G.; Tiwari, A.N.; Ueda, S.; Vilalta-Clemente, A.; Weiss, T.P.; Werner, F.; Wilks, R.G.; Witte, W.; Wolter, M.H.: Heavy Alkali Treatment of Cu(In,Ga)Se₂ Solar Cells: Surface versus Bulk Effects. Advanced Energy Materials 10 (2020), p. 1903752/1-15
  doi: 10.1002/aenm.201903752
  Open Access
• 
  Siebert, A.; Dou, X.; Garcia-Diez, R.; Buchholz, D.; Félix, R.; Handick, E.; Greco, G.; Hasa, I.; Wilks, R.G.; Passerini, S.; Bär, M.: Monitoring the Sodiation Mechanism of Anatase TiO₂ Nanoparticle-Based Electrodes for Sodium-Ion Batteries by Operando XANES Measurements. ACS Applied Energy Materials 4 (2021), p. 164–175
  doi: 10.1021/acsaem.0c02025
  Open Access (external provider)
• 
  Siebert, A.; Dou, X.; Garcia-Diez, R.; Buchholz, D.; Felix, R.; Handick, E.; Wilks, R.G.; Passerini, S.; Bär, M.: Solid Electrolyte Interphase Formation on Anatase TiO₂ Nanoparticle-Based Electrodes for Sodium-Ion Batteries. ACS Applied Energy Materials 7 (2024), p. 125-132
  doi: 10.1021/acsaem.3c02304
  Open Access
• 
  Siebert, Andreas: Insights into Operation-Induced Changes of Next Generation Post-Lithium Battery Electrodes Revealed by X-Ray Spectroscopic Operando Measurements = Einblicke in betriebsbedingte Änderungen von Post-Lithium-Batterieelektroden der nächsten Generation aufgedeckt durch röntgenspektroskopische operando Messungen. , FAU Erlangen-Nürnberg, 2020
  https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/14874
  https://opus4.kobv.de/opus4-fau/files/14874/DoktorarbeitSiebert.pdf
  Open Access
• 
  Smirnov, V.; Lambertzl, A.; Moll, S.; Baer, M.; Starr, D. E.; Wilks, R. G.; Gorgoi, M.; Heidt, A.; Luysberg, M.; Hollaender, B.; Finger, F.: Doped microcrystalline silicon oxide alloys for silicon-based photovoltaics: Optoelectronic properties, chemical composition, and structure studied by advanced characterization techniques. Physica Status Solidi A 213 (2016), p. 1814-1820
  doi: 10.1002/pssa.201533022
• 
  Smolin, S.Y.; Choquette, A.K.; Wilks, R.G.; Gauquelin, N.; Felix, R.; Gerlach, D.; Ueda, S.; Krick, A.L.; Verbeeck, J.; Baer, M.; Baxter, J.B.; May, S.J.: Energy Level Alignment and Cation Charge States at the LaFeO₃/LaMnO₃ (001) Heterointerface. Advanced Materials Interfaces 4 (2017), p. 1700183/1-8
  doi: 10.1002/admi.201700183
• 
  Song, X.; Caballero, R.; Felix, R.; Gerlach, D.; Kaufmann, C. A.; Schock, H.-W.; Wilks, R.G.; Bär, M.: Na incorporation into Cu(ln,Ga)Se₂ thin-film solar cell absorbers deposited on polyimide: Impact on the chemical and electronic surface structure. Journal of Applied Physics 111 (2012), p. 034903/1-8
  doi: 10.1063/1.3679604
  Open Access (external provider)
• 
  Sood, M.; Bombsch, J.; Lomuscio, A.; Shukla, S.; Hartmann, C.; Frisch, J.; Bremsteller, W.; Ueda, S.; Wilks, R.G.; Bär, M.; Siebentritt, S.: Origin of Interface Limitation in Zn(O,S)/CuInS₂-Based Solar Cells. ACS Applied Materials & Interfaces 14 (2022), p. 9676-9684
  doi: 10.1021/acsami.1c19156
  Open Access
• 
  Starr, D.E.; Sadoughi, G.; Handick, E.; Wilks, R.G.; Alsmeier, J.H.; Köhler, L.; Gorgoi, M.; Snaith, H.J.; Baer, M.: Direct observation of an inhomogeneous chlorine distribution in CH₃NH₃PbI_3-xCl_x layers: surface depletion and interface enrichment. Energy & Environmental Science 8 (2015), p. 1609-1615
  doi: 10.1039/c5ee00403a
• 
  Steckenmesser, D.; Vogel, C.; Herzel, H.; Felix, R.; Adam, C.; Steffens, D.: Thermal treatment of sewage sludge for phosphorus fertilizer production: a model experiment. Journal of Plant Nutrition 45 (2022), p. 1123-1133
  doi: 10.1080/01904167.2021.1994595
• 
  Sullivan, J.T.; Wilks, R.G.; Winkler, M.T.; Weinhardt, L.; Recht, D.; Said, A.J.; Newman, B.K.; Zhang, Y.; Blum, M.; Krause, S.; Yang, W.L.; Heske, C.; Aziz, M.J.; Bär, M.; Buonassisi, T.: Soft x-ray emission spectroscopy studies of the electronic structure of silicon supersaturated with sulfur. Applied Physics Letters 99 (2011), p. 142102/1-3
  doi: 10.1063/1.3643050
• 
  Sutka, A.; Kaambre, T.; Joost, U.; Kooser, K.; Kook, M.; Felix Duarte, R.; Kisand, V.; Maiorov, M.; Doebelin, N.; Smits, K.: Solvothermal synthesis derived Co-Ga codoped ZnO diluted magnetic degenerated semiconductor nanocrystals. Journal of Alloys and Compounds 763 (2018), p. 164-172
  doi: 10.1016/j.jallcom.2018.05.036
  Open Access (external provider)
• 
  Temperton, R.H.; Kawde, A.; Eriksson, A.; Wang, W.; Kokkonen, E.; Jones, R.; Gericke, S.M.; Zhu, S.; Quevedo, W.; Seidel, R.; Schnadt, J.; Shavorskiy, A.; Persson, P.; Uhlig, J.: Dip-and-pull ambient pressure photoelectron spectroscopy as a spectroelectrochemistry tool for probing molecular redox processes. The Journal of Chemical Physics 157 (2022), p. 244701/1-7
  doi: 10.1063/5.0130222
  Open Access
• 
  Thum, L.; Arztmann, M.; Zizak, I.; Grüneberger, R.; Steigert, A.; Grimm, N.; Wallacher, D.; Schlatmann, R.; Amkreutz, D.; Gili, A.: In situ cell for grazing-incidence x-ray diffraction on thin films in thermal catalysis. Review of Scientific Instruments 95 (2024), p. 033904/1-7
  doi: 10.1063/5.0179989
  Open Access
• 
  Tran, I.C.; Félix, R.; Bär, M.; Weinhardt, L.; Zhang, Y.; Heske C.: Oxidation of titanium-decorated single-walled carbon nanotubes and subsequent reduction by lithium. Journal of the American Chemical Society 132 (2010), p. 5789-5792
  doi: 10.1021/ja910976k
• 
  Tuominen, M.; Mäkelä, J.; Yasir, M.; Dahl, J.; Granroth, S.; Lehtiö, J.-P.; Félix, R.; Laukkanen, P.; Kuzmin, M.; Laitinen, M.; Punkkinen, M.P.J.; Hedman, H.-P.; Punkkinen, R.; Polojärvi, V.; Lyytikäinen, J.; Tukiainen, A.; Guina, M.; Kokko, K.: Oxidation-Induced Changes in the ALD-Al₂O₃/InAs(100) Interface and Control of the Changes for Device Processing. ACS Applied Materials & Interfaces 10 (2018), p. 44932-44940
  doi: 10.1021/acsami.8b17843
  Open Access (external provider)
• 
  Šutka, A.; Döbelin, N.; Joost, U.; Smits, K.; Kisand, V.; Maiorov, M.; Kooser, K.; Kook, M.; Felix Duarte, R.; Käämbre, T.: Facile synthesis of magnetically separable CoFe₂O₄/Ag₂O/Ag₂CO₃ nanoheterostructures with high photocatalytic performance under visible light and enhanced stability against photodegradation. Journal of Environmental Chemical Engineering 5 (2017), p. 3455-3462
  doi: 10.1016/j.jece.2017.07.009
  Open Access (external provider)
• 
  Valenta, D.; Yetkin, H.A.; Kodalle, T.; Bombsch, J.; Garcia-Diez, R.; Hartmann, C.; Ueda, S.; Félix, R.; Frisch, J.; Bodenstein-Dresler, L.; Wilks, R.G.; Kaufmann, C.A.; Bär, M.: The Energy Level Alignment at the Buffer/Cu(In,Ga)Se₂ Thin-Film Solar Cell Interface for CdS and GaOx. Advanced Energy Materials 11 (2024), p. 2301110/1-7
  doi: 10.1002/admi.202301110
  Open Access
• 
  van der Merwe, M.; Garcia-Diez, R.; Lahn, L.; Wibowo, R.E.; Frisch, J.; Gorgoi, M.; Yang, W.; Ueda, S.; Wilks, R.G.; Kasian, O.; Bär, M.: The Chemical and Electronic Properties of Stability-Enhanced, Mixed Ir-TiO_x Oxygen Evolution Reaction Catalysts. ACS Catalysis 13 (2023), p. 15427-15438
  doi: 10.1021/acscatal.3c02948
  Open Access
• 
  Vermang, B.; Brammertz, G.; Meuris, M.; Schnabel, T.; Ahlswede, E.; Choubrac, L.; Harel, S.; Cardinaux, C.; Arzel, L.; Barreau, N.; van Deelen, J.; Bolt, P.-J.; Bras, P.; Ren, Y.; Jaremalm, E.; Khelifi, S.; Yang, S.; Lauwaert, J.; Batuk, M.; Hadermann, J.; Kozina, X.; Handick, E.; Hartmann, C.; Gerlach, D.; Matsuda, A.; Ueda, S.; Chikyow, T.; Félix, R.; Zhang, Y.; Wilks, R G.; Bär, M: Wide band gap kesterite absorbers for thin film solar cells: Potential and challenges for their deployment in tandem devices. Sustainable Energy & Fuels 3 (2019), p. 2246-2259
  doi: 10.1039/C9SE00266A
  Open Access (external provider)
• 
  Vogel, C.; Helfenstein, J.; Massey, M.S.; Sekine, R.; Kretzschmar, R.; Beiping, L.; Peter, T.; Chadwick, O.A.; Tamburini, F.; Rivard, C.; Herzel, H.; Adam, C.; Pradas del Real, A.E.; Castillo-Michel, H.; Zuin, L.; Wang, D.; Félix, R.; Lassalle-Kaiser, B.; Frossard, E.: Microspectroscopy reveals dust-derived apatite grains in acidic, highly-weathered Hawaiian soils. Geoderma 381 (2021), p. 114681/1-11
  doi: 10.1016/j.geoderma.2020.114681
  Open Access
• 
  Vogel, C.; Sekine, R.; Steckenmesser, D.; Lombi, E.; Herzel, H.; Zuin, L.; Wang, D.; Felix, R.; Adam, C.: Combining diffusive gradients in thin films (DGT) and spectroscopic techniques for the determination of phosphorus species in soils. Analytica Chimica Acta 1057 (2019), p. 80-87
  doi: 10.1016/j.aca.2019.01.037
  Open Access (external provider)
• 
  Vollmer, A.; Schlesinger, R.; Frisch, J.: Sample degradation and beam-induced damage in (synchrotron-based) electronic structure experiments. Electronic Structure 5 (2023), p. 045003/1-8
  doi: 10.1088/2516-1075/acf974
  Open Access
• 
  Vorwerk, C.; Hartmann, C.; Cocchi, C.; Sadoughi, G.; Habisreutinger, S.; Félix, R.; Wilks, R.; Snaith, H.; Bär, M.; Draxl, C.: Correction: Exciton-Dominated Core-Level Absorption Spectra of Hybrid Organic-Inorganic Lead Halide Perovskites. The Journal of Physical Chemistry Letters 9 (2018), p. 3193
  doi: 10.1021/acs.jpclett.8b01552
• 
  Vorwerk, C.; Hartmann, C.; Cocchi, C.; Sadoughi, G.; Habisreutinger, S.; Félix, R.; Wilks, R.G.; Snaith, H.; Bär, M.; Draxl, C.: Exciton-Dominated Core-Level Absorption Spectra of Hybrid Organic-Inorganic Lead Halide Perovskites. The Journal of Physical Chemistry Letters 9 (2018), p. 1852-1858
  doi: 10.1021/acs.jpclett.8b00378
  Open Access (external provider)
• 
  Wang, J.; Wilks, R.G.; Félix, R.; Liao, X.X.; Grigoriev, A.; Bär, M.: The Pb(Zr0.2,Ti0.8)O3/ZnO/GaN Ferroelectric–Semiconductor Heterostructure: Insight into the Interfacial Energy Level Alignments. Advanced Materials Interfaces 7 (2020), p. 2000201/1-5
  doi: 10.1002/admi.202000201
  Open Access
• 
  Wang, W.; Alsmeier, J.; Schlaf, R.: Experimental determination of the charge neutrality level of Poly[2-methoxy-5-(2´-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV). Langmuir 29 (2013), p. 6341-6347
  doi: 10.1021/la400819f
• 
  Weinhardt, L.; Bär, M.; Pookpanratana, S.; Morkel, M.; Niesen, T.P.; Karg, F.; Ramanathan, K.; Contreras, M.A.; Noufi, R.; Umbach, E.; Heske C.: Sulfur gradient-driven Se diffusion at the CdS/CuIn(S,Se)₂ solar cell interface. Applied Physics Letters 96 (2010), p. 182102/1-3
  doi: 10.1063/1.3425666
• 
  Weinhardt, L.; Benkert, A.; Meyer, F.; Blum, M.; Hauschild, D.; Wilks, R.G.; Bär, M.; Yang, W.; Zharnikov, M.; Reinert, F.; Heske, C.: Local electronic structure of the peptide bond probed by resonant inelastic soft X-ray scattering. Physical Chemistry Chemical Physics 21 (2019), p. 13216-13223
  doi: 10.1039/c9cp02481f
  Open Access
• 
  Weinhardt, L.; Benkert, A.; Meyer, F.; Blum, M.; Wilks, R.G.; Yang, W.; Bär, M.; Reinert, F.; Heske, C.: Nuclear dynamics and spectator effects in resonant inelastic soft x-ray scattering of gas-phase water molecules. The Journal of Chemical Physics 136 (2012), p. 144311/1-6
  doi: 10.1063/1.3702644
• 
  Weinhardt, L.; Blum, M.; Fuchs, O.; Benkert, A.; Meyer, F.; Bär, M.; Denlinger, J.D.; Yang, W.; Reinert, F.; Heske, C.: RIXS investigations of liquids, solutions, and liquid/solid interfaces. Journal of Electron Spectroscopy and Related Phenomena 188 (2013), p. 111-120
  doi: 10.1016/j.elspec.2012.10.006
• 
  Weinhardt, L.; Blum, M.; Fuchs, O.; Pookpanratana, S.; George, K.; Cole, B.; Marsen, B.; Gaillard, N.; Miller, E.; Ahn, K.-S.; Shet, S.; Yan, Y.; Al-Jassim, M.-M.; Denlinger, J.-D.; Yang, W.; Bär, M.; Heske, C.: Soft X-ray and electron spectroscopy to determine the electronic structure of materials for photoelectrochemical hydrogen production. Journal of Electron Spectroscopy and Related Phenomena 190 (2013), p. 106-112
  doi: 10.1016/j.elspec.2012.11.015
• 
  Weinhardt, L.; Ertan, E.; Iannuzzi, M.; Weigand, M.; Fuchs, O.; Bär, M.; Blum, M.; Denlinger, J. D.; Yang, W.; Umbach, E.; Odelius, M.; Heske, C.: Probing hydrogen bonding orbitals: resonant inelastic soft X-ray scattering of aqueous NH3. Physical Chemistry Chemical Physics 17 (2015), p. 27145-27153
  doi: 10.1039/c5cp04898b
• 
  Weinhardt, L.; Fuchs, O.; Batchelor, D.; Bär, M.; Blum, M.; Denlinger, J.D.; Yang, W.; Schöll, A.; Reinert, F.; Umbach, E.; Heske, C.: Electron-hole correlation effects in core-level spectroscopy probed by the resonant inelastic soft x-ray scattering map of C₆₀. The Journal of Chemical Physics 135 (2011), p. 104705/1-5
  doi: 10.1063/1.3633953
• 
  Weinhardt, L.; Fuchs, O.; Fischer, A.; Weigand, M.; Meyer, F.; Benkert, A.; Blum, M.; Bär, M.; Pookpanratana, S.; Denlinger, J.; Heske, C.; Umbach, E.: Site- and Symmetry-Resolved Resonant X-ray Emission Study of a Highly Ordered PTCDA Thin Film. The Journal of Physical Chemistry C 120 (2016), p. 8607-8615
  doi: 10.1021/acs.jpcc.5b12422
• 
  Weinhardt, L.; Weigand, M.; Fuchs, O.; Bär, M.; Blum, M.; Denlinger, J.D.; Yang, W.; Umbach, E.; Heske, C.: Nuclear dynamics in the core-excited state of aqueous ammonia probed by resonant inelastic soft x-ray scattering. Physical Review B 84 (2011), p. 104202/1-6
  doi: 10.1103/PhysRevB.84.104202
• 
  Wibowo, E. R.; Garcia-Diez, R.; Bystron, T.; van der Merwe, M.; Prokop, M.; Arce, M.; Efimenko, A.; Steigert, A.; Bernauer, M.; Wilks, R.; Bouzek, K.; Bär, M.: Elucidating the Complex Oxidation Behavior of Aqueous H3PO3 on Pt Electrodes via In Situ Tender X-ray Absorption Near-Edge Structure Spectroscopy at the P K-Edge. Journal of the American Chemical Society 146 (2024), p. 7386–7399
  doi: 10.1021/jacs.3c12381
  Open Access
• 
  Wibowo, R.E.; Garcia-Diez, R.; Bystron, T.; Prokop, M.; van der Merwe, M.; Arce, M.D.; Jiménez, C.E.; Hsieh, T.E.; Frisch, J.; Steigert, A.; Favaro, M.; Starr, D.E.; Wilks, R.G.; Bouzek, K.; Bär, M.: Oxidation of Aqueous Phosphorous Acid Electrolyte in Contact with Pt Studied by X-ray Photoemission Spectroscopy. ACS Applied Materials & Interfaces 15 (2023), p. 51989-51999
  doi: 10.1021/acsami.3c12557
  Open Access
• 
  Wibowo, R.E.; Garcia-Diez, R.; van der Merwe, M.; Duarte-Ruiz, D.; Ha, Y.; Félix, R.; Efimenko, A.; Bystron, T.; Prokop, M.; Wilks, R.G.; Bouzek, K.; Yang, W.; Cocchi, C.; Bär, M.: Core-Level Spectroscopy with Hard and Soft X-rays on Phosphorus-Containing Compounds for Energy Conversion and Storage. The Journal of Physical Chemistry C 127 (2023), p. 20582-20593
  doi: 10.1021/acs.jpcc.3c04704
  Open Access
• 
  Wilks, R.G.; Bär, M.: Danger from within. Nature Energy 2 (2017), p. 16204/1-2
  doi: 10.1038/nenergy.2016.204
• 
  Wilks, R.G.; Caballero, R.; Song, X.; Felix, R.; Benkert, A.; Gerlach, D.; Weinhardt, L.; Blum, M.; Yang, W.; Kaufmann, C.A.; Heske, C.; Schock, H.-W.; Bär, M.: X-ray Spectroscopic Analysis of the Growth of CBD-CdS Buffers on flexible Cu(In,Ga)Se-2 Thin-Film Solar Cell Structures. In: 38th IEEE Photovoltaic Specialists Conference (PVSC 2012) : Austin, Texas, USA, 3 - 8 June 2012Piscataway, NJ: IEEE, 2012. - ISBN 978-1-467-30064-3, p. 1682-1687
• 
  Wilks, R.G.; Contreras, M.A.; Lehmann, S.; Herrero-Albillos, J.; Tati Bismaths, L.; Kronast, F.; Noufi, R.; Bär, M.: Surface modification of polycrystalline Cu(In,Ga)Se₂ thin-film solar cell absorber surfaces for PEEM measurements. In: IEEE [Ed.] : 37th IEEE Photovoltaic Specialists Conference (PVSC 2011): Seattle, Washington, USA, 19 - 24 June 2011Piscataway, NJ: IEEE, 2011. - ISBN 978-1-4244-9965-6, p. 2515-2518
  doi: 10.1109/pvsc.2011.6186457
• 
  Wilks, R.G.; Erbing, A.; Sadoughi, G.; Starr, D.E.; Handick, E.; Meyer, F.; Benkert, A.; Iannuzzi, M.; Hauschild, D.; Yang, W.; Blum, M.; Weinhardt, L.; Heske, C.; Snaith, H.J.; Odelius, M.; Bär, M.: Dynamic Effects and Hydrogen Bonding in Mixed-Halide Perovskite Solar Cell Absorbers. The Journal of Physical Chemistry Letters 12 (2021), p. 3885-3890
  doi: 10.1021/acs.jpclett.1c00745
  Open Access (external provider)
• 
  Wilks, R.G.; Repins, I.; Contreras, M.A.; Felix, R.; Herrero-Albillos, J.; Tati-Bismaths, L.; Kronast, F.; Noufi, R.; Bär, M.: Intergrain variations of the chemical and electronic surface structure of polycrystalline Cu(In,Ga)Se₂ thin-film solar cell absorbers. Applied Physics Letters 101 (2012), p. 103908/1-4
  doi: 10.1063/1.4751261
  Open Access (external provider)
• 
  Wimmer, M.; Bär, M.; Gerlach, D.; Wilks, R.G.; Scherf, S.; Lupulescu, C.; Ruske, F.; Felix, R.; Hüpkes, J.; Gavrila, G.; Gorgoi, M.; Lips, K.; Eberhardt, W.; Rech, B.: Hard x-ray photoelectron spectroscopy study of the buried Si/ZnO thin-film solar cell interface: Direct evidence for the formation of Si-O at the expense of Zn-O bonds. Applied Physics Letters 99 (2011), p. 152104/1-3
  doi: 10.1063/1.3644084
  Open Access (external provider)
• 
  Wimmer, M.; Gerlach, D.; Wilks, R.-G.; Scherf, S.; Félix, R.; Lupulescu, C.; Ruske, F.; Schondelmaier, G.; Lips, K.; Hüpkes, J.; Gorgoi, M.; Eberhardt, W.; Rech, B.; Bär, M.: Chemical interaction at the buried silicon/zinc oxide thin-film solar cell interface as revealed by hard x-ray photoelectron spectroscopy. Journal of Electron Spectroscopy and Related Phenomena 190 (2013), p. 309-313
  doi: 10.1016/j.elspec.2013.06.006
  Open Access (external provider)
• 
  Wippler, D.; Wilks, R.G.; Pieters, B.E.; van Albada, S.J.; Gerlach, D.; Huepkes, J.; Baer, M.; Rau, U.: Pronounced Surface Band Bending of Thin-Film Silicon Revealed by Modeling Core Levels Probed with Hard X-rays. ACS Applied Materials & Interfaces 8 (2016), p. 17685-17693
  doi: 10.1021/acsami.6b04666
• 
  Witte, W.; Jackson, P.; Buecheler, S.; Carron, R.; Siebentritt, S.; Werner, F.; Duguay, S.; Vilalta-Clemente, A.; Menozzi, R.; Sozzi, G.; Bourgeois, E.; Degutis, G.; Bär, M.; Kunze, T.; Sadewasser, S.; Nicoara, N.; Puska, M. J.; Malitckaya, M.; Tiwari, A. N.: Towards the next generation of high-efficiency Cu(In,Ga)Se2 thin-film solar cells – Sharc25. Photovoltaics International 41 (2018), p. 79-89
  https://www.pv-tech.org/technical-papers/towards-the-next-generation-of-highefficiency-cuingase2-thin-film-solar-cel
• 
  Wittkämper, H.; Hock, R.; Weißer, M.; Dallmann, J.; Vogel, C.; Raman, N.; Tacardi, N.; Haumann, M.; Wasserscheid, P.; Hsieh, T.E.; Maisel, S.; Moritz, M.; Wichmann, C.; Frisch, J.; Gorgoi, M.; Wilks, R.G.; Bär, M.; Wu, M.; Spiecker, E.; Görling, A.; Unruh, T.; Steinrück, H.P.; Papp, C.: Isolated Rh atoms in dehydrogenation catalysis. Scientific Reports 13 (2023), p. 4458/1-8
  doi: 10.1038/s41598-023-31157-y
  Open Access
• 
  Wittkämper, H.; Hock, R.; Weißer, M.; Dallmann, J.; Vogel, C.; Raman, N.; Taccardi, N.; Haumann, M.; Wasserscheid, P.; Hsieh, T.E.; Maisel, S.; Moritz, M.; Wichmann, C.; Frisch, J.; Gorgoi, M.; Wilks, R.G.; Bär, M.; Wu, M.; Spiecker, E.; Görling, A.; Unruh, T.; Steinrück, H.P.; Papp, C.: Correction : Isolated Rh atoms in dehydrogenation catalysis. Scientific Reports 13 (2023), p. 9588/1
  doi: 10.1038/s41598-023-35778-1
  Open Access
• 
  Wittkämper, H.; Maisel, S.; Wu, M.; Frisch, J.; Wilks, R.G.; Grabau, M.; Spiecker, E.; Bär, M.; Görling, A.; Steinrück, H.P.; Papp, C.: Oxidation induced restructuring of Rh-Ga SCALMS model catalyst systems. The Journal of Chemical Physics 153 (2020), p. 104702/1-13
  doi: 10.1063/5.0021647
  Open Access
• 
  Xi, F.; Bozheyev, F.; Han, X.; Rusu, M.; Rappich, J.; Abdi, F.; Bogdanoff, P.; Kaltsoyannis, N.; Fiechter, S.: Enhancing Hydrogen Evolution Reaction via Synergistic Interaction between the [Mo₃S₁3]^2– Cluster Co-Catalyst and WSe₂ Photocathode. ACS Applied Materials & Interfaces 14 (2022), p. 52815–52824
  doi: 10.1021/acsami.2c14312
  Open Access
• 
  Xiao, T.; Erfurt, D.; Félix, R.; Liao, X.; Frisch, J.; Abou-Ras, D.; Mazzio, K.A.; Wilks, R.G.; Schlatmann, R.; Bär, M.: Annealing-Induced Chemical Interaction at the Ag/In₂O₃:H Interface as Revealed by In Situ Photoelectron Spectroscopy. Advanced Materials Interfaces 10 (2023), p. 2202347/1-8
  doi: 10.1002/admi.202202347
  Open Access
• 
  Xiao, Ting: X-ray Spectroscopic Study of Heterostructure Contacting Schemes for Optoelectronic Devices. , Cottbus, Brandenburgische Technische Universität (BTU), Diss., 2019
  https://opus4.kobv.de/opus4-btu/files/4939/Ting_Xiao.pdf
  Open Access
• 
  Xu, C.; Lindgren, F.; Philippe, B.; Gorgoi, M.; Björefors, F.; Edelström, K.; Gustafsson, T.: Improved Performance of the Silicon Anode for Li-Ion Batteries: Understanding the Surface Modification Mechanism of Fluoroethylene Carbonate as an Effective Electrolyte Additive. Chemistry of Materials 27 (2015), p. 2591–2599
  doi: 10.1021/acs.chemmater.5b00339
  Open Access (external provider)
• 
  Yang, P.; Wilks, R.G.; Yang, W.; Bär, M.: Interface Formation between CdS and Alkali Postdeposition-Treated Cu(In,Ga)Se₂ Thin-Film Solar Cell Absorbers - Key to Understanding the Efficiency Gain. ACS Applied Materials & Interfaces 12 (2020), p. 6688-6698
  doi: 10.1021/acsami.9b20327
  Open Access
• 
  Yang, Penghui: Impact of alkali treatments on the surface and interface properties of Chalcopyrite thin-film solar cell absorbers. , BTU Cottbus, 2020
  https://opus4.kobv.de/opus4-btu/frontdoor/index/index/docId/5177
  https://opus4.kobv.de/opus4-btu/files/5177/Penghui_Yang-1.pdf
  Open Access
• 
  Yin, Z.; Rehanek, J.; Löchel, H.; Braig, C.; Buck, J.; Firsov, A.; Viefhaus, J.; Erko, A.; Techert, S.: Highly efficient soft X-ray spectrometer based on a reflection zone plate for resonant inelastic X-ray scattering measurements. Optics Express 25 (2017), p. 10984-10996
  doi: 10.1364/OE.25.010984
  Open Access
• 
  Zhang, J.; Barreau, M.; Dintzer, T.; Haevecker, M.; Teschner, D.; Efimenko, A.; Luo, W.; Zafeiratos, S.: Unveiling Key Interface Characteristics of Ni/Yttria-Stabilized Zirconia Solid Oxide Cell Electrodes in H₂O Electroreduction Using Operando X-ray Photoelectron Spectroscopy. ACS Applied Materials & Interfaces 16 (2024), p. 37915-37926
  doi: 10.1021/acsami.4c05046
• 
  Zhang, Y.; Lin, N.; Li, Y.; Wang, X.; Wang, H.; Kang, J.; Wilks, R.; Baer, M.; Mu, R.: The isotype ZnO/SiC heterojunction prepared by molecular beam epitaxy-A chemical inert interface with significant band discontinuities. Scientific Reports 6 (2016), p. 23106/1-9
  doi: 10.1038/srep23106
  Open Access
• 
  Zhang, Z.; Li, Y.; Frisch, J.; Bär, M.; Rappich, J.; Kneipp, J.: In situ surface-enhanced Raman scattering shows ligand-enhanced hot electron harvesting on silver, gold, and copper nanoparticles. Journal of Catalysis 383 (2020), p. 153-159
  doi: 10.1016/j.jcat.2020.01.006
  Open Access (external provider)
• 
  Ziemba, M.; Weyel, J.; Zeller, P.; Welzenbach, J.; Efimenko, A.; Hävecker, M.; Hess, C.: Importance of Metal-Support Interactions for CO₂ Hydrogenation: An Operando Near-Ambient Pressure X-ray Photoelectron Spectroscopy Study on Gold-Loaded In₂O₃ and CeO₂ Catalysts. The Journal of Physical Chemistry Letters 15 (2024), p. 4928-4932
  doi: 10.1021/acs.jpclett.4c00653
  Open Access (available 01.04.2025)
• 
  Zukuls, A.; Eglitis, R.; Käämbre, T.; Kook, M.; Kisand, V.; Maiorov, M.; Ignatans, R.; Felix Duarte, R.; Järvekülg, M.; Šutka, A.: Magnetic and optical properties in degenerated transition metal and Ga co-substituted ZnO nanocrystals. Journal of Alloys and Compounds 805 (2019), p. 1191-1199
  doi: 10.1016/j.jallcom.2019.07.197