Pressure-dependent Raman scattering of co-evaporated Cu2ZnSnSe4 thin film

被引：7

作者：

Kim, Yongshin ^{[1
]}

Choi, In-Hwan ^{[1
]}

机构：

[1] Chung Ang Univ, Dept Phys, 84 Heukseok Ro, Seoul 156756, South Korea

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2016年 / 253卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

Cu2ZnSnSe4; CZTSe; high pressure; Raman scattering; secondary phases; thin films; PHASE-EQUILIBRIA; SPECTROSCOPY; KESTERITE; DISORDER; SYSTEM;

D O I：

10.1002/pssb.201600142

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

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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页码：1861 / 1864

页数：4

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