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http://dx.doi.org/10.4313/JKEM.2013.26.2.144

Manufacturing and Thermal Process Optimization of Ag-paste for Fabricating High Efficiency Mono-Si Solar Cell  

Pi, Ji-Hee (Department of Materials Science & Engineering/ReSEM, Korea National University of Transportation)
Kim, Sung-Jin (Eujene Korea Co., Ltd.)
Son, Chang-Rok (Eujene Korea Co., Ltd.)
Kweon, Soon-Yong (Department of Materials Science & Engineering/ReSEM, Korea National University of Transportation)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.26, no.2, 2013 , pp. 144-150 More about this Journal
Abstract
A New Ag-pastes were developed for integrating the high efficiency mono-Si solar cell. The pastes were the mixture of 84 wt% Ag, 2 wt% glass frit, 11 wt% solvent of buthyl cabitol acetate, and 3 wt% additives. After fabricating the Ag-pastes by using a 3-roll mill, they were coated on a $SiN_x$/n+/p- stacks of a commercial mono-Si solar cell. And the post-thermal process was also optimized by varying the process conditions of peak temperature. The optimized solar cell efficiency on a 6-inch mono-Si wafer was 18.28%, which was the one of the world best performances. It meaned that the newly developed Ag-paste could be adopted to fabricate a commercial bulk Si solar cell.
Keywords
Ag-paste; Glass frit; Mono-Si solar cell; Electrical properties; High efficiency;
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