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Showing results 41 to 60 of 75
   Cu-Rich Precursors Improve Kesterite Solar Cells; ; et al in ADVANCED ENERGY MATERIALS (2014), 4(2), Detailed reference viewed: 135 (2 UL) Different Bandgaps in Cu2ZnSnSe4 : a high temperature coevaporation studyRedinger, Alex  ; Sendler, Jan ; Djemour, Rabie et alin IEEE Journal of Photovoltaics (2014) Detailed reference viewed: 206 (8 UL)Direct Evaluation of Defect Distributions From Admittance SpectroscopyWeiss, Thomas ; Redinger, Alex ; Regesch, David et alin IEEE JOURNAL OF PHOTOVOLTAICS (2014), 4 Detailed reference viewed: 187 (12 UL)Assessment of crystal quality and unit cell orientation in epitaxial Cu2ZnSnSe4 layers using polarized Raman scattering; ; Redinger, Alex et alin OPTICS EXPRESS (2014), 22(23), 28240-28246 We use polarization-resolved Raman spectroscopy to assess the crystal quality of epitaxial kesterite layers. It is demonstrated for the example of epitaxial Cu2ZnSnSe4 layers on GaAs(001) that ``standing ... [more ▼] We use polarization-resolved Raman spectroscopy to assess the crystal quality of epitaxial kesterite layers. It is demonstrated for the example of epitaxial Cu2ZnSnSe4 layers on GaAs(001) that ``standing'' and ``lying'' kesterite unit cell orientations (c'-axis parallel / perpendicular to the growth direction) can be distinguished by the application of Raman tensor analysis. From the appearance of characteristic intensity oscillations when the sample is rotated one can distinguish polycrystalline and epitaxial layers. The method can be transferred to kesterite layers oriented in any crystal direction and can shed light on the growth of such layers in general. (C) 2014 Optical Society of America [less ▲] Detailed reference viewed: 103 (0 UL)Cu2ZnSnSe4 thin film solar cells produced via co-evaporation and annealing including a SnSe2 capping layerRedinger, Alex ; ; et alin PROGRESS IN PHOTOVOLTAICS (2014), 22(1), 51-57 Cu2ZnSnSe4 (CZTSe) thin film solar cells have been produced via co-evaporation followed by a high-temperature annealing. In order to reduce the decomposition of the CZTSe, a SnSe2 capping layer has been ... [more ▼] Cu2ZnSnSe4 (CZTSe) thin film solar cells have been produced via co-evaporation followed by a high-temperature annealing. In order to reduce the decomposition of the CZTSe, a SnSe2 capping layer has been evaporated onto the absorber prior to the high-temperature treatment. This eliminates the Sn losses due to SnSe evaporation. A solar cell efficiency of 5.1 could be achieved with this method. Moreover, the device does not suffer from high series resistance, and the dominant recombination pathway is situated in the absorber bulk. Finally different illumination conditions (white light, red light, and yellow light) reveal a strong loss in fill factor if no carriers are generated in the CdS buffer layer. This effect, known as red-kink effect, has also been observed in the closely related Cu(In,Ga)Se-2 thin film solar cells. Copyright (c) 2013 John Wiley Sons, Ltd. [less ▲] Detailed reference viewed: 112 (0 UL)Multiple phases of Cu2ZnSnSe4 detected by room temperature photoluminescenceDjemour, Rabie ; Redinger, Alex ; Mousel, Marina et alin Journal of Applied Physics (2014), 116 Detailed reference viewed: 182 (8 UL)Method for manufacturing a semiconductor thin filmRedinger, Alex ; Mousel, Marina ; Siebentritt, Susanne Patent (2013) Detailed reference viewed: 105 (6 UL)Semiconductor material and method of production; Redinger, Alex ; Dale, Phillip et alPatent (2013) Detailed reference viewed: 188 (9 UL)Molecular beam epitaxy of Cu2ZnSnSe4 thin films grown on GaAs(001)Redinger, Alex ; Djemour, Rabie ; Weiss, Thomas et alScientific Conference (2013, June) Detailed reference viewed: 169 (3 UL)Method for manufacturing a semiconductor thin filmRedinger, Alex ; Mousel, Marina ; Siebentritt, Susanne Patent (2013) Detailed reference viewed: 113 (7 UL)HCl and Br2-MeOH etching of Cu2ZnSnSe4 polycrystalline absorbersMousel, Marina ; Redinger, Alex ; Djemour, Rabie et alin Thin Solid Films (2013), 535 Detailed reference viewed: 192 (8 UL)Cu2ZnSnSe4 thin film solar cells produced via coevaporation and annealing including a SnSe2 capping layerRedinger, Alex ; Mousel, Marina ; Djemour, Rabie et alin Progress in Photovoltaics (2013) Detailed reference viewed: 195 (10 UL)Role of high series resistance in admittance spectroscopy of kesterite solar cellsWeiss, Thomas ; Redinger, Alex ; Luckas, Jennifer Maria et alScientific Conference (2013) Detailed reference viewed: 159 (11 UL)The three A symmetry Raman modes of kesterite in Cu2ZnSnSe4Djemour, Rabie ; Redinger, Alex ; Mousel, Marina et alin Optics Express (2013) Detailed reference viewed: 161 (6 UL)Detecting ZnSe secondary phase in Cu2ZnSnSe4 by room temperature photoluminescenceDjemour, Rabie ; Mousel, Marina ; Redinger, Alex et alin Applied Physics Letters (2013), 102 Detailed reference viewed: 219 (14 UL)Atom probe study of Cu2ZnSnSe4 thin-films prepared by co-evaporation and post-deposition annealing; ; et al in Applied Physics Letters (2013), 102 Detailed reference viewed: 193 (9 UL)Admittance spectroscopy in kesterite solar cells: Defect signal or circuit responseWeiss, Thomas ; Redinger, Alex ; Luckas, Jennifer Maria et alin Applied Physics Letters (2013) Detailed reference viewed: 201 (7 UL)Cu-rich precursors improve kesterite solar cellsMousel, Marina ; ; Djemour, Rabie et alin Advanced Energy Materials (2013), 4 Detailed reference viewed: 195 (11 UL)Influence of S/Se ratio on series resistance and on dominant recombination pathway in Cu2ZnSn(SSe)4 thin film solar cellsRedinger, Alex ; Mousel, Marina ; et alin Thin Solid Films (2013), 535 Detailed reference viewed: 202 (3 UL)Lone conduction band in Cu2ZnSnSe4Gütay, Levent ; Redinger, Alex ; Djemour, Rabie et alin Applied Physics Letters (2012), 100 Detailed reference viewed: 156 (4 UL) |
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