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Optimal Design of a CIGS Module Grid

Published online by Cambridge University Press:  13 September 2011

Yiyang Li ,
Shihang Yang ,
Xieqiu Zhang  and
Xudong Xiao
Yiyang Li
Affiliation:
Franklin W. Olin College of Engineering, Needham, MA, 02492, USA
Shihang Yang
Affiliation:
Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong
Xieqiu Zhang
Affiliation:
Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong
Xudong Xiao
Affiliation:
Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong
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Abstract

Solar cells based on Cu(In, Ga)Se2 (CIGS) have made significant strides in the past decades with a record efficiency of over 20% [1]. A problem with CIGS modules is the high resistive losses along the transparent top contact. One solution is to deposit highly-conductive metal grids to collect the current. We use finite-element analysis to determine the effectiveness of the metal grid under a variety of parameters. We identify the resistance of the top contact and the width of the scribes as the most important factors in determining whether a metal grid would present a significant efficiency gain. Using the same model, we also investigate methods to optimize the design of the grid.

Keywords

simulationtransparent conductorphotovoltaic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1315: Symposium MM – Transparent Conducting Oxides and Applications , 2011 , mrsf10-1315-mm11-04
Copyright
Copyright © Materials Research Society 2011

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References

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