COMPARISON OF HIGH EFFICIENCY SOLAR CELLS ON LARGE AREA N-TYPE AND P-TYPE SILICON WAFERS WITH SCREEN-PRINTED ALUMINUM-ALLOYED REAR JUNCTION

被引:0
作者
Saynova, D. S. [1 ]
Mihailetchi, V. D. [1 ]
Geerligs, L. J. [1 ]
Weeber, A. W. [1 ]
机构
[1] ECN Solar Energy, NL-1755 ZG Petten, Netherlands
来源
PVSC: 2008 33RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, VOLS 1-4 | 2008年
关键词
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Low-cost, high-efficiency, and large area n-type silicon cells can be processed based on the screen printed Aluminum-alloyed rear junction concept. This process uses fabrication techniques which are very close to the current industry-standard screen printed mc-Si cell process. We compare, by experimental tests and modeling, the differences of using n-type wafers and p-type wafers with this process. An independently confirmed record-high efficiency of 17.4% is achieved on n-type floatzone (FZ) silicon wafers (area 140 cm(2)). On p-type FZ wafers, with the same process 17.6% is obtained, and 16.8% on p-type Cz wafers. Model calculations allow us to identify the potential for further enhancement of the n-type cell efficiency to slightly above 18.0% by improving front surface passivation. We also discuss experimental characteristics of cells produced by this process from n-type multicrystalline wafers.
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页码:1661 / 1665
页数:5
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