Surface composition deviation of Cu2ZnSnS4 derivative powdered samples

被引：4
作者：
Harel, S. [1 ]
Guillot-Deudon, C. [1 ]
Choubrac, L. [1 ]
Hamon, J. [1 ]
Lafond, A. [1 ]
机构：
[1] Univ Nantes, Inst Mat Jean Rouxel IMN, UMR 6502, F-44322 Nantes 03, France
来源：
APPLIED SURFACE SCIENCE | 2014年 / 303卷
关键词：
Solar cell; CZTS; Cu2ZnSnS4; Kesterite; XPS; X-ray photoelectron spectroscopy; Cu-depletion; Surface composition; CU DEPLETION; THIN-FILMS; PHOTOEMISSION; CELLS;
D O I：
10.1016/j.apsusc.2014.02.096
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Powdered samples of Cu2ZnSnS4 derivatives prepared through a solid-state route were investigated by both bulk (electron dispersive X-ray spectroscopy) and surface-sensitive (X-ray photoelectron spectroscopy) methods. We observe a deviation in composition between the surface and the bulk for all non-stoichiometric samples (both Cu-poor and Cu-rich). This behavior has already been observed for slightly Cu-poor CZTS thin films and is reminiscent of that of CIGSe compounds. (C) 2014 Elsevier B.V. All rights reserved.
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收藏
页码：107 / 110
页数：4
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