Raman analysis of monoclinic Cu2SnS3 thin films

被引：245

作者：

Berg, Dominik M. ^{[3
]}

Djemour, Rabie ^{[3
]}

Guetay, Levent ^{[3
]}

Siebentritt, Susanne ^{[3
]}

Dale, Phillip J. ^{[3
]}

Fontane, Xavier ^{[1
]}

Izquierdo-Roca, Victor ^{[1
]}

Perez-Rodriguez, Alejandro ^{[1
,2
]}

机构：

[1] Catalonia Inst Energy Res IREC, Barcelona 08930, Spain

[2] Univ Barcelona, Dept Elect, IN2UB, E-08028 Barcelona, Spain

[3] Univ Luxembourg, Lab Photovolta, L-4422 Belvaux, Luxembourg

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 19期

关键词：

CRYSTAL-STRUCTURE;

D O I：

10.1063/1.4712623

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Secondary phases like Cu2SnS3 are major obstacles for kesterite thin film solar cell applications. We prepare Cu2SnS3 using identical annealing conditions as used for the kesterite films. By x-ray diffraction, the crystal structure of Cu2SnS3 was identified as monoclinic. Polarization-dependent Raman investigations allowed the identification of the dominant peaks at 290 cm(-1) and 352 cm(-1) with the main A' symmetry vibrational modes from the monoclinic Cu2SnS3 phase. Furthermore, micro-resolved Raman investigations revealed local variations in the spectra that are attributed to a secondary phase (possibly Cu2Sn3S7). This exemplifies the abilities of micro-resolved Raman measurements in the detection of secondary phases. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4712623]

引用

页数：4

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