Reference : Surface characterization of epitaxial Cu-rich CuInSe2 absorbers
Scientific congresses, symposiums and conference proceedings : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Physics
Physics and Materials Science
http://hdl.handle.net/10993/43864
Surface characterization of epitaxial Cu-rich CuInSe2 absorbers
English
Martin Lanzoni, Evandro mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Spindler, Conrad mailto [University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > Physics and Materials Science Research Unit >]
Ramirez Sanchez, Omar mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Melchiorre, Michele mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Siebentritt, Susanne mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Redinger, Alex mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Jul-2019
IEEE Photovoltaic Specialists Conference. Conference Record
Institute of Electrical and Electronics Engineers
Yes
International
0160-8371
Chicago
IL
2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)
from 16-06-2019 to 21-06-2019
[en] CISe ; KPFM ; Cu-rich
[en] We investigated the electrical properties of epitaxial Cu-rich CuInSe 2 by Kelvin probe force microscopy (KPFM) under ambient and ultra-high vacuum conditions. We first measured the sample under ambient conditions before and after potassium cyanide (KCN) etching. In both cases, we do not see any substantial contrast in the surface potential data; furthermore, after the KCN etching we observed outgrowths with a height around 2nm over the sample surface. On the other hand, the KPFM measurements under ultra-high vacuum conditions show a work function dependence according to the surface orientation of the Cu-rich CuInSe 2 crystal. Our results show the possibility to increase the efficiency of epitaxial Cu-rich CuInSe 2 by growing the materials in the appropriated surface orientation where the variations in work function are reduced.
Fonds National de la Recherche - FnR
http://hdl.handle.net/10993/43864
10.1109/PVSC40753.2019.8981200
https://ieeexplore.ieee.org/abstract/document/8981200/authors#authors
FnR ; FNR11696002 > Alex Redinger > GRISC > Grain boundaries in solar cells > 01/07/2018 > 30/06/2021 > 2017

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