Article (Scientific journals)
Assessment of crystal quality and unit cell orientation in epitaxial Cu2ZnSnSe4 layers using polarized Raman scattering
Kraemmer, Christoph; Lang, Mario; Redinger, Alex et al.
2014In Optics Express, 22 (23), p. 28240-28246
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Abstract :
[en] 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
Disciplines :
Physics
Author, co-author :
Kraemmer, Christoph
Lang, Mario
Redinger, Alex ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Johannes, Sachs
Gao, Chao
Kalt, Heinz
Siebentritt, Susanne ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Hetterich, Michael
External co-authors :
yes
Language :
English
Title :
Assessment of crystal quality and unit cell orientation in epitaxial Cu2ZnSnSe4 layers using polarized Raman scattering
Publication date :
2014
Journal title :
Optics Express
ISSN :
1094-4087
Publisher :
Optical Society of America, Washington, United States - District of Columbia
Volume :
22
Issue :
23
Pages :
28240-28246
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
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since 02 November 2017

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