Martin-Luther-Universität Halle-Wittenberg

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Publikationen

2017

T. Hölscher, S. Förster, T. Schneider, M. Maiberg, W. Widdra, and R. Scheer, Light induced degradation of Cu(In,Ga)Se2 thin film surfaces.
Applied Physics Letters, 2017. 111(1).10.1063/1.4992116: p. 011604

L.A. Wägele, D. Rata, G. Gurieva, and R. Scheer:
Structural analysis of co-evaporated In2S3 and In2S3:V for solar cell absorber applications
physica status solidi c, 2017 14(6).10.1002/pssc.201600204: p. e201600204-n/a

S. Zahedi-Azad and R. Scheer:
Quenching interface recombination in wide bandgap Cu(In,Ga)Se2 by potassium treatment
physica status solidi c, 2017 14(6).10.1002/pssc.201600203: p. e201600203-n/a

E. Jarzembowski, B. Fuhrmann, H. Leipner, W. Fränzel, and R. Scheer:
Ultrathin Cu(In,Ga)Se2 solar cells with point-like back contact in experiment and simulation
Thin Solid Films, 2017.633.http://dx.doi.org/10.1016/j.tsf.2016.11.003: p. 61-65

D. Abou-Ras, S. Wagner, B.J. Stanbery, H.-W. Schock, R. Scheer, L. Stolt, S. Siebentritt, D. Lincot, C. Eberspacher, K. Kushiya, and A.N. Tiwari:
Innovation highway: Breakthrough milestones and key developments in chalcopyrite photovoltaics from a retrospective viewpoint
Thin Solid Films, 2017.633.https://doi.org/10.1016/j.tsf.2017.01.005: p. 2-12

M. Maiberg, F. Bertram, M. Müller, and R. Scheer:
Theoretical study of time-resolved luminescence in semiconductors. IV. Lateral inhomogeneities
Journal of Applied Physics, 2017 121(8).10.1063/1.4976102: p. 085703

2016

Zahedi-Azad, S; Jarzembowski, E; Hartnauer, S: Wägele, L; Greiner, D and Scheer, R:
Monitoring the phase evolution of Cu(In,Ga)Se-2 by different Se flux via in-situ XRD
Physica status solidi A, 213, 8, p. 2169-2175 (2016)
DOI: 10.1002/pssa.201532991

Hartnauer, S; Körbel S; L. Marques MA; Botti, S; Pistor, P. and Scheer, R:
Research Update: Stable single-phase Zn-rich Cu2ZnSnSe4 through In doping
APL Mater. 4, 070701 (2016)
http://dx.doi.org/10.1063/1.4953435

Uedono, A; Islam, MM; Sakurai, T; Hugenschmidt, C; Egger, W; Scheer, R; Krause-Rehberg, R and Akimoto, K:
Vacancy behavior in Cu(In1-xGax)Se-2 layers grown by a three-stage coevaporation process probed by monoenergetic positron beams
Thin Solid Films, 603, p. 418-423 (2016)
DOI: 10.1016/j.tsf.2016.02.057

2015

W. Witte, D. Abou-Ras, K. Albe, G.H. Bauer, F. Bertram, C. Boit, R. Brüggemann, J. Christen, J. Dietrich, A. Eicke, D. Hariskos, M. Maiberg, R. Mainz, M. Meessen, M. Müller, O. Neumann, T. Orgis, S. Paetel, J. Pohl, H. Rodriguez-Alvarez, R. Scheer, H.-W. Schock, T. Unold, A. Weber, and M. Powalla, Gallium gradients in Cu(In,Ga)Se2 thin-film solar cells. Progress in Photovoltaics: Research and Applications, 2015. 23(6).10.1002/pip.2485: p. 717-733.

P. Pistor, S. Zahedi-Azad, S. Hartnauer, L.A. Wägele, E. Jarzembowski, and R. Scheer, Real time observation of phase formations by XRD during Ga-rich or In-rich Cu(In,Ga)Se2 growth by co-evaporation. physica status solidi (a), 2015.DOI: 10.1002/pssa.201431949.

F. Obereigner, N. Barreau, W. Witte, and R. Scheer, Open-circuit and doping transients of Cu(In,Ga)Se2 solar cells with varying Ga content. Journal of Applied Physics, 2015. 117: p. 055704.

M. Maiberg, C. Spindler, E. Jarzembowski, and R. Scheer, Electrical characterization of Cu(In,Ga)Se2-solar cells by voltage dependent time-resolved photoluminescence. Thin Solid Films, 2015. 582: p. 379.

M. Maiberg, T. Hölscher, S. Zahedi-Azad, and R. Scheer, Theoretical study of time-resolved luminescence in semiconductors. III. Trap states in the band gap. Journal of Applied Physics, 2015. 118: p. 105701.

M. Maiberg, T. Hölscher, S. Zahedi-Azad, W. Fränzel, and R. Scheer, Investigation of long lifetimes in Cu(In,Ga)Se2 by time-resolved photoluminescence. Applied Physics Letters, 2015. 107(12).DOI:\link{doi:10.1063/1.4931632:   }{http://dx.doi.org/10.1063/1.4931632:   } p. 122104.

E. Jarzembowski, F. Syrowatka, K. Kaufmann, W. Fränzel, T. Hölscher, and R. Scheer, The influence of sodium on the molybdenum/Cu(In,Ga)Se2 interface recombination velocity, determined by time resolved photoluminescence. Applied Physics Letters, 2015. 107: p. 051601.

E. Jarzembowski, M. Maiberg, F. Obereigner, K. Kaufmann, S. Krause, and R. Scheer, Optical and electrical characterization of Cu(In,Ga)Se2 thin film solar cells with varied absorber layer thickness. Thin Solid Films, 2015. 576: p. 75.

S. Hartnauer, L.A. Wägele, F. Syrowatka, G. Kaune, and R. Scheer, Co-evaporation process study of Cu2ZnSnSe4 thin films by in situ light scattering and in situ X-ray diffraction. Physica Status Solidi a-Applications and Materials Science, 2015. 212(356)

S. Hartnauer, L.A. Wägele, E. Jarzembowski, and R. Scheer, In-situ XRD study of alloyed Cu2ZnSnSe4-CuInSe2 thin films for solar cells. Thin Solid Films, 2015. 582: p. 272.

J. Borchert, H. Boht, W. Franzel, R. Csuk, R. Scheer, and P. Pistor, Structural investigation of co-evaporated methyl ammonium lead halide perovskite films during growth and thermal decomposition using different PbX2 (X=I,Cl) precursors. Journal of Materials Chemistry A, 2015,3,19842-19849, DOI: 10.1039/C5TA04944J   

E. Jarzembowski, F. Syrowatka, K. Kaufmann, W. Fränzel, T. Hölscher, R. Scheer: The influence of sodium on the molybdenum/Cu(In,Ga)Se2 interface recombination velocity, determined by time resolved photoluminescence. Applied Physics Letters 107, 051601 (2015), DOI: http://dx.doi.org/10.1063/1.4928187   

E. Jarzembowski, M. Maiberg, F. Obereigner,K. Kaufmann, S. Krause, R. Scheer: Optical and electrical characterization of Cu(In,Ga)Se2 thin film solar cells with varied absorber layer thickness. Thin Solid Films 576, (2015), 75-80

F. Obereigner, N. Barreau, W. Witte, R. Scheer: Open-circuit and doping transients of Cu(In,Ga)Se2 solar cells with varying Ga content. Journal of Applied Physics 117, 055704, 2015

S. Hartnauer, L.A. Wägele, F. Syrowatka, G. Kaune, and R. Scheer: Co-evaporation process study of Cu2ZnSnSe4 thin films by in situ light scattering an in situ X-ray diffraction. Physica Status Solidi 212,p. 356-363, 2015

2014

Kaune, G., Hartnauer, S., Syrowatka, P., and Scheer, R.: Phase formation in Cu2ZnSnSe4 thin films deposited with multi-stage co-evaporation processes. Solar Energy Materials and Solar Cells, 2014. 120.10.1016/j.solmat.2013.09.043: p.569

Kavalakkatt, J., Abou-Ras, D., Haarstrich, J., Ronning, C., Nichterwitz, M., Caballero, R., Rissom, T., Unold, T., Scheer, R., and Schock, H.W.: Electron-beam-induced current at absorber back surfaces of Cu (In,Ga)Se2 thin-film solar cells. Journal of Applied Physics, 2014. 115(1).doi:http://dx.doi.org/10.1063/1.4858393:p.    -.

Maiberg, M., and Scheer, R.: Theoretical study of time-resolved luminescence in semiconductor heterostructures. 1. Decay from the steady state. Journal of Applied Physics, 2014. 116(13): p. in print.

Maiberg, M., and Scheer, R.: Theoretical study of time-resolved luminescence in  semiconductor heterostructures. 2. Pulsed excitation. Journal of Applied Physics, 2014. 116: p. 123711

Maiberg, M., Spindler, C., Jarzembowski, E., and Scheer, R.: Electrical characterization of Cu(In, Ga)Se2-solar cells by voltage dependent time-resolved photoluminescence. Thin Solid Films, 2014(0). http://dx.doi.org/10.1016/j.tsf.2014.09.022   

Pistor, P., Borchert, J., Fränzel, W., Csuk, R., and Scheer, R.: Monitoring the Phase Formation of Coevaporated Lead Halide Perovskite Thin Films by in Situ X-ray Diffraction. The Journal of Physical Chemistry Letters, 2014. 5(19).10.1021/jz5017312: p. 3308-3312

Witte, W., Abou-Ras, D., Albe, K., Bauer, G.H., Bertram, F., Boit, C., Brüggemann, R., Christen, J., Dietrich, J., Eicke, A., Hariskos, D., Maiberg, M., Mainz, R., MeesseKaune, G., Hartnauer, S., Syrowatka, P., and Scheer, R.:
Phase formation in Cu2ZnSnSe4 thin films deposited with multi-stage co-evaporation processes.
Solar Energy Materials and Solar Cells, 2014. 120.10.1016/j.solmat.2013.09.043: p.569

Kavalakkatt, J., Abou-Ras, D., Haarstrich, J., Ronning, C., Nichterwitz, M., Caballero, R., Rissom, T., Unold, T., Scheer, R., and Schock, H.W.: Electron-beam-induced current at absorber back surfaces of Cu (In,Ga)Se2 thin-film solar cells.
Journal of Applied Physics, 2014. 115(1).doi:http://dx.doi.org/10.1063/1.4858393:p.    -.

Maiberg, M., and Scheer, R.:
Theoretical study of time-resolved luminescence in semiconductor heterostructures. 1. Decay from the steady state.
Journal of Applied Physics, 2014. 116(13): p. in print.

Maiberg, M., and Scheer, R.:
Theoretical study of time-resolved luminescence in  semiconductor heterostructures. 2. Pulsed excitation.
Journal of Applied Physics, 2014. 116: p. 123711

Maiberg, M., Spindler, C., Jarzembowski, E., and Scheer, R.:
Electrical characterization of Cu(In, Ga)Se2-solar cells by voltage dependent time-resolved photoluminescence.
Thin Solid Films, 2014(0). http://dx.doi.org/10.1016/j.tsf.2014.09.022   

Pistor, P., Borchert, J., Fränzel, W., Csuk, R., and Scheer, R.:
Monitoring the Phase Formation of Coevaporated Lead Halide Perovskite Thin Films by in Situ X-ray Diffraction.
The Journal of Physical Chemistry Letters, 2014. 5(19).10.1021/jz5017312: p. 3308-3312

Witte, W., Abou-Ras, D., Albe, K., Bauer, G.H., Bertram, F., Boit, C., Brüggemann, R., Christen, J., Dietrich, J., Eicke, A., Hariskos, D., Maiberg, M., Mainz, R., Meessen, M., Müller, M., Neumann, O., Orgis, T., Paetel, S., Pohl, J., Rodriguez-Alvarez, H., Scheer, R., Schock, H.-W., Unold, T., Weber, A., and Powalla, M.:
Gallium gradients in Cu(In,Ga)Se2 thin-film solar cells.
Progress in Photovoltaics: Research and Applications, 2014.10.1002/pip.2485n, M., Müller, M., Neumann, O., Orgis, T., Paetel, S., Pohl, J., Rodriguez-Alvarez, H., Scheer, R., Schock, H.-W., Unold, T., Weber, A., and Powalla, M.: Gallium gradients in Cu(In,Ga)Se2 thin-film solar cells. Progress in Photovoltaics: Research and Applications, 2014.10.1002/pip.2485

2013

Jarzembowski, E., Hartnauer, S., Fränzel, W., Kaufmann, K., Scheer, R.: Investigation of Selenium to metal evaporation ratio with respect to absorber structure and electrical properties of Cu(In,Ga)Se2 thin film solar cells. EU PVSEC Proceedings, 28th European Photovoltaik Solar Energy Conference, 2013; 2319-2322.

Kaune, G., Hartnauer, S., Scheer, R.: In situ XRD investigation of Cu2ZnSnSe4 thin film growth by thermal co-evapoation. Phys. Status Solidi A, 2013, p. 1-6

Orgis, T.,Maiberg, M.,Scheer, R.: Influence of band gradients on Cu(In,Ga)Se2 solar cell diode factors. Journal of Applied Physics 114, 214506, 2013, p. 1-8

Kempa, H., Rissom, T., Hlawatsch, U., Gaudig, M., Obereigner, F., Kaufmann, C.A., Scheer, R.: Metastability of solar cells based on evaporated chalcopyrite absorber layers prepared with varying selenium flux. Thin Solid Films 535, 2013, p. 340-342

2012

W. Witte, M. Powalla, D. Hariskos, A. Eicke, M. Botros, H-W. Schock, D. Abou-Ras, R. Mainz, H. Rodriguez-Alvarez, T. Unold, G. H. Bauer, R. Brüggemann, S.J. Heise, O. Neumann, M. Meessen, J. Christen, F. Bertram, M. Müller, A. Klein, T. Adler, K. Albe, J. Pohl, M. Martin, R.A De Souza, L. Nagarajan, T. Beckers, C. boit, J. Dietrich, M. Hetterich, Z. Zhang, R. Scheer, H. Kempa, T. Orgis: Chemical Gradients in Cu(In,Ga)(S,Se)2 Thin-Film Solar Cells: Results of The Gracis Projekt, 27th European Photovoltaic Solar Energy Conference and Exhibition (2012) p. 2166

R. Scheer: Open questions after 20 years of CuInS2 research, Prog. Photovolt: Res Appl. 2012; 20:507-511

V.Mertens, T.Ballmann, J.Y.Lee, M.Junghänel, F.Stenzel, L.Brandt, A.Schulze, P.Engelhart, J.W.Müller, P.Wawer, and K.H.Küsters: Influence of Base Resistivity on Solar Cell Parameters of Double-side Contacted Rear Junction Solar Cells. Energy Procedia; SiliconPV: April 03-05, 2012, Leuven, Belgium

2011

Helena Wilhelm , Hans-Werner Schock , Roland Scheer: Interface recombination in heterojunction solar cells: Influence of buffer layer thickness.  J. Appl. Phys. 109 (2011) 084514, DOI: 10.1063/1.3554409

Klenk, R.; Klaer, J.; Köble, Ch.; Mainz, R.; Merdes, S.; Rodriguez-Alvarez, H.; Scheer, R.; Schock, H.W.: Development of CuInS2-based solar cells and modules. Solar Energy Materials & Solar Cells 95 (2011) 1441-1445

Scheer, R. and Schock, H.-W.: Chalcogenide Photovoltaics (Physics, Technologies, and Thin Film Devices), WILEY-VCH Verlag GmbH &Co.KGaA (2011) ISBN: 978-3-527-31459-1

Scheer, R.: Toward an electronic model for CuIn1-xGaxSe2 solar cells. Thin Solid Films (2011) doi:10.1016/j.tsf.2011.01.092   

2010


Rodriguez-Alvarez, H.;Mainz, R.; Scheer, R; Schock, H.-W.
Reaction paths during the sulfurization of In/Cu-Ga and u-In-Ga thin films.
Proceedings 5th World Conference on Photovoltaic Energy Conversion.
(2010) 3406-3410

Marsen, B; Steinkopf, L; Singh, A; Wilhelm, H; Lauermann, I; Unold, T; Scheer, R; Schock, HW.
Effects of Ti-incorporation in CuInS2 solar cells.
Solar Energy Materials & Solar Cells
94, (2010) 1730-1733

Scheer, R; Pérez-Rodriguez, A; Metzger, WK
Advanced diagnostic and control methods of processes and layers in CIGS solar cells and modules
Prog. Photovolt: Res. Appl.18, (2010) 467-480

2009


Abou-Ras, D; Koch, CT; Kustner, V; van Aken, PA; Jahn, U; Contreras, MA; Caballero, R; Kaufmann, CA; Scheer, R; Unold, T; Schock, HW
Grain-boundary types in chalcopyrite-type thin films and their correlations with film textue and electrical properties.
Thin Solid Films 517, (2009) 7, 2545-2549.

Nichterwitz, M; Abou-Ras, D; Sakurai, K; Bundesmann, J; Unold, T; Scheer, R; Schock, HW
Influence of grain boundaries on current collection in Cu(In,Ga)Se-2 thin-film solar cells
Thin Solid Films 517, (2009) 7, 2554-2557.

Scheer, R
Proceedings of the EMRS 2008 Spring Meeting Symposium L: Thin Film Chalcogenide Photovoltaic Materials Srasbourg, France Preface
Thin Solid Films 517, (2009) 7, 2107-2107.

Scheer, R
Activation energy of heterojunction diode currents in the limit of interface recombination
Journal of Applied Physics 105, (2009) 104505-1 - 104505-6

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