Eliminating the excess CuxSe phase in Cu-rich Cu(In,Ga)Se2 by In2Se3 treatment

被引：9

作者：

Peng, Xiao ^{[1
]}

Zhao, Ming ^{[1
]}

Zhuang, Daming ^{[1
]}

Guo, Li ^{[1
]}

Ouyang, Liangqi ^{[1
]}

Sun, Rujun ^{[1
]}

Zhang, Leng ^{[1
]}

Wei, Yaowei ^{[1
]}

Zhan, Shilu ^{[1
]}

Lv, Xunyan ^{[1
]}

Wu, Yixuan ^{[1
]}

Ren, Guoan ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 709卷

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Solar cell; CuxSe distribution; C-AFM; Methanol bromine etching; Cu-rich chalcopyrite; In2Se3; treatment; SOLAR-CELLS; EFFICIENCY; FILMS; ABSORBERS; GROWTH; MODEL;

D O I：

10.1016/j.jallcom.2017.03.142

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：

The residual CuxSe phase results in shunt leakage paths in Cu-rich Cu(In,Ga)Se-2 (CIGS) which can cause serious degradation in the conversion efficiency. The conductive atom force microscopy(C-AFM) was employed to obtain a direct evidence of shunt leakage paths in the Cu-rich CIGS thin film. The results reveal that CuxSe phase exists not only near the surface but also inside the Cu-rich CIGS thin films. In order to eliminate the residual CuxSe, it is recommended to deposit a thin layer of In2Se3 on Cu-rich CIGS with subsequent annealing treatment In2Se3 treatment for short). The In2Se3 treatment can effectively remove CuxSe phase as well as the shunt leakage paths in Cu-rich CIGS thin films and improve the efficiency of Cu-rich CIGS based solar cells from 1.2% to 9.5%. (C) 2017 Published by Elsevier B.V.

引用

页码：31 / 35

页数：5

共 22 条

[21] A 21.5% efficient Cu(In,Ga)Se2 thin-film concentrator solar cell [J].

Ward, JS ;

Ramanathan, K ;

Hasoon, FS ;

Coutts, TJ ;

Keane, J ;

Contreras, MA ;

Moriarty, T ;

Noufi, R .

PROGRESS IN PHOTOVOLTAICS, 2002, 10 (01) :41-46

[22] Gallium gradients in Cu(In,Ga)Se2 thin-film solar cells [J].

Witte, Wolfram ;

Abou-Ras, Daniel ;

Albe, Karsten ;

Bauer, Gottfried H. ;

Bertram, Frank ;

Boit, Christian ;

Brueggemann, Rudolf ;

Christen, Juergen ;

Dietrich, Jens ;

Eicke, Axel ;

Hariskos, Dimitrios ;

Maiberg, Matthias ;

Mainz, Roland ;

Meessen, Max ;

Mueller, Mathias ;

Neumann, Oliver ;

Orgis, Thomas ;

Paetel, Stefan ;

Pohl, Johan ;

Rodriguez-Alvarez, Humberto ;

Scheer, Roland ;

Schock, Hans-Werner ;

Unold, Thomas ;

Weber, Alfons ;

Powalla, Michael .

PROGRESS IN PHOTOVOLTAICS, 2015, 23 (06) :717-733

← 1 2 3 →