Pressure-dependent Raman scattering of co-evaporated Cu2ZnSnSe4 thin film
- Authors
- Kim, Yongshin; Choi, In-Hwan
- Issue Date
- Sep-2016
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Cu2ZnSnSe4; CZTSe; high pressure; Raman scattering; secondary phases; thin films
- Citation
- PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, v.253, no.9, pp 1861 - 1864
- Pages
- 4
- Journal Title
- PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
- Volume
- 253
- Number
- 9
- Start Page
- 1861
- End Page
- 1864
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/6584
- DOI
- 10.1002/pssb.201600142
- ISSN
- 0370-1972
1521-3951
- Abstract
- We obtained Raman spectra of a co-evaporated Cu2ZnSnSe4 (CZTSe) thin film under pressures of up to 5.56 GPa using a gasketed diamond anvil cell. Each spectrum was carefully resolved into Lorentzian peaks to analyze the observed phonons. Six Raman peaks were observed at 1 atm. These Raman peaks appeared at 174, 193, 196, 220, 234, and 248 cm(-1) and were attributed to the vibration modes of kesterite CZTSe with B (or A), E, A, E, B, and B symmetries, respectively. Also, two Raman modes with a frequency of approximately 260 cm(-1) emerged at 1.27 GPa. A small additional peak with a 220 cm(-1) Raman shift was visible at pressures higher than 3.55 GPa. The origins of these peaks are also discussed. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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