The investigation of ZnO:Al2O3/metal composite back reflectors in amorphous silicon germanium thin film solar cells

doi:10.1088/1674-1056/22/6/068102

中国物理B ›› 2013, Vol. 22 ›› Issue (6): 68102-068102.doi: 10.1088/1674-1056/22/6/068102

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

The investigation of ZnO:Al₂O₃/metal composite back reflectors in amorphous silicon germanium thin film solar cells

王光红, 赵雷, 闫保军, 陈静伟, 王革, 刁宏伟, 王文静

Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering, the Chinese Academy of Sciences, Beijing 100190, China

收稿日期:2012-07-27 修回日期:2012-12-04 出版日期:2013-05-01 发布日期:2013-05-01
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2011CBA00705) and the High Technology Research Program of China (Grant No. 2011AA050502).

The investigation of ZnO:Al₂O₃/metal composite back reflectors in amorphous silicon germanium thin film solar cells

Wang Guang-Hong (王光红), Zhao Lei (赵雷), Yan Bao-Jun (闫保军), Chen Jing-Wei (陈静伟), Wang Ge (王革), Diao Hong-Wei (刁宏伟), Wang Wen-Jing (王文静)

Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering, the Chinese Academy of Sciences, Beijing 100190, China

Received:2012-07-27 Revised:2012-12-04 Online:2013-05-01 Published:2013-05-01
Contact: Wang Guang-Hong E-mail:wangguanghong@mail.iee.ac.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2011CBA00705) and the High Technology Research Program of China (Grant No. 2011AA050502).

摘要/Abstract

摘要： Different aluminum-doped ZnO (AZO)/metal composite thin films, including AZO/Ag/Al, AZO/Ag/nickel-chromium alloy (NiCr), and AZO/Ag/NiCr/Al, are utilized as the back reflectors of p-i-n amorphous silicon germanium thin film solar cells. NiCr is used as diffusion barrier layer between Ag and Al to prevent mutual diffusion, which increases the short circuit current density of solar cell. NiCr and NiCr/Al layers are used as protective layers of Ag layer against oxidation and sulfurization, the higher efficiency of solar cell is achieved. The experimental results show that the performance of a-SiGe solar cell with AZO/Ag/NiCr/Al back reflector is best. The initial conversion efficiency is achieved to be 8.05%.

关键词: a-SiGe solar cells, composite back reflector, NiCr diffusion barrier layer

Abstract: Different aluminum-doped ZnO (AZO)/metal composite thin films, including AZO/Ag/Al, AZO/Ag/nickel-chromium alloy (NiCr), and AZO/Ag/NiCr/Al, are utilized as the back reflectors of p-i-n amorphous silicon germanium thin film solar cells. NiCr is used as diffusion barrier layer between Ag and Al to prevent mutual diffusion, which increases the short circuit current density of solar cell. NiCr and NiCr/Al layers are used as protective layers of Ag layer against oxidation and sulfurization, the higher efficiency of solar cell is achieved. The experimental results show that the performance of a-SiGe solar cell with AZO/Ag/NiCr/Al back reflector is best. The initial conversion efficiency is achieved to be 8.05%.

Key words: a-SiGe solar cells, composite back reflector, NiCr diffusion barrier layer

中图分类号: (Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.))

81.15.Gh

88.40.jj (Silicon solar cells) 42.82.Bq (Design and performance testing of integrated-optical systems)

王光红, 赵雷, 闫保军, 陈静伟, 王革, 刁宏伟, 王文静. The investigation of ZnO:Al₂O₃/metal composite back reflectors in amorphous silicon germanium thin film solar cells[J]. 中国物理B, 2013, 22(6): 68102-068102.

Wang Guang-Hong (王光红), Zhao Lei (赵雷), Yan Bao-Jun (闫保军), Chen Jing-Wei (陈静伟), Wang Ge (王革), Diao Hong-Wei (刁宏伟), Wang Wen-Jing (王文静). The investigation of ZnO:Al₂O₃/metal composite back reflectors in amorphous silicon germanium thin film solar cells[J]. Chin. Phys. B, 2013, 22(6): 68102-068102.

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The investigation of ZnO:Al₂O₃/metal composite back reflectors in amorphous silicon germanium thin film solar cells

The investigation of ZnO:Al₂O₃/metal composite back reflectors in amorphous silicon germanium thin film solar cells

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