20% efficient n-type Cz-Si MWT solar cells with adjustable reverse behavior

被引:1
作者
Lohmueller, Elmar [1 ]
Werner, Sabrina [1 ]
Maus, Stephan [1 ]
Brand, Andreas [1 ]
Jaeger, Ulrich [1 ]
Clement, Florian [1 ]
机构
[1] Fraunhofer Inst Solar Energy Syst ISE, Heidenhofstr 2, D-79110 Freiburg, Germany
来源
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2016年 / 213卷 / 06期
关键词
metal wrap through solar cells; n-type silicon; reverse bias behavior; structuring;
D O I
10.1002/pssa.201600010
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present 6-inch n-type Cz-Si metal wrap through (MWT) solar cells with screen-printed and fired contacts achieving energy conversion efficiencies up to 20.4%. These so-called n-type high-performance MWT (n-HIP-MWT) structures feature different rear side configurations at the external p-type contacts with respect to the phosphorus-doped back surface field (BSF). It is shown that the alteration of the phosphorus dopant concentration at the silicon surface below the external rear p-type contacts allows for both decreasing reverse-bias-induced losses and adjusting the current flowing in reverse mode. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码:1598 / 1601
页数:4
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