High efficient thin film CdTe solar cells

被引：0

作者：

Yang, Ruilong ^{[1
,2
]}

Bai, Zhizhong ^{[1
,2
]}

Wang, Dezhao ^{[1
,2
]}

Wang, Deliang ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Anhua 230026, Peoples R China

[2] Univ Sci & Technol China, CAS KEy Lab Energy Convers Mat, Anhua 230026, Peoples R China

来源：

PROCEEDINGS OF THE 2013 SPANISH CONFERENCE ON ELECTRON DEVICES (CDE 2013) | 2013年

关键词：

CdTe; solar cell; CdS; efficiency;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

CdTe thin film solar cell with an absorber layer as thin as 0.5 mu m was fabricated. An efficiency of 7.9 % was obtained for a 1-mu m-thick CdTe solar cell. The experimental results presented in this study demonstrated that 1-mu m-thick absorber layer is thick enough to fabricate CdTe solar cell with a decent efficiency. Formation of mono-grain CdS layer with grain size in submicron was fabricated. Heat treatment of a CdS precursor layer coated with a CdCl2 layer and under a high CdCl2 vapor pressure reduced oxide formation at the grain surface and promoted grain coalescence. High crystalline quality mono-grain CdS layer ensured homogenous intermixing of CdS and CdTe at the CdS/CdTe interface. A saturated junction leakage current in the order of 10(-10) A/cm(2) and a short-circuit current as high as 25.1 cm/cm(2) were obtained for a mono-grain-CdS/CdTe solar cell. The corresponding solar cell efficiency is 14.6%.

引用

页码：341 / 344

页数：4

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