Cu2ZnSnS4 solar cells fabricated by short-term sulfurization of sputtered Sn/Zn/Cu precursors under an H2S atmosphere

被引：15

作者：

Emrani, Amin ^{[1
]}

Rajbhandari, Pravakar P. ^{[1
]}

Dhakal, Tara P. ^{[1
]}

Westgate, Charles R. ^{[1
]}

机构：

[1] SUNY Binghamton, Dept Elect Engn, Ctr Autonomous Solar Power, Binghamton, NY 13902 USA

来源：

THIN SOLID FILMS | 2015年 / 577卷

关键词：

Cadmium zinc tin sulfo-selenide; Thin films; Solar cells; EFFICIENCY; CZTS;

D O I：

10.1016/j.tsf.2015.01.051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Synthesis of Cu2ZnSnS4 (CZTS) thin films by short-term sulfurization of sputtered Sn/Zn/Cu precursors under ambient H2S is studied. The effect of the sulfurization processes on the film morphology, surface roughness, composition of the CZTS, and the crystallinity was investigated by using scanning electron microscopy, optical profiler, energy dispersive spectroscopy, and X-ray diffraction respectively. To further explore the CZTS layer, the following additional layers were deposited to complete the solar cells: CdS with chemical bath deposition; ZnO and Al2O3-doped ZnO with RF magnetron deposition; and, silver fingers as the front contact as the last layer. The optical and morphological properties of the CZTS films were investigated and compared. Subsequently, the electrical characteristics and the efficiencies of the regarding solar cells were analyzed. A maximum efficiency of 3.8% has been obtained for the fast sulfurization (30 min at 580 degrees C) and finally, the performance is compared with our best cell fabricated through the more common slow annealing. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：62 / 66

页数：5

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