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Improvement of Mo/Cu2ZnSnS4 interface for Cu2ZnSnS4 (CZTS) thin film solar cell application

Published online by Cambridge University Press:  17 February 2014

Hongtao Cui ,
Xiaolei Liu ,
Xiaojing Hao ,
Fangyang Liu ,
Ning Song ,
Wei Li ,
Chang Yan ,
Gavin Conibeer  and
Martin Green
Hongtao Cui*
Affiliation:
School of Photovoltaic & Renewable Energy Engineering, The University of New South Wales, Sydney 2052, Australia.
Xiaolei Liu
Affiliation:
School of Photovoltaic & Renewable Energy Engineering, The University of New South Wales, Sydney 2052, Australia.
Xiaojing Hao
Affiliation:
School of Photovoltaic & Renewable Energy Engineering, The University of New South Wales, Sydney 2052, Australia.
Fangyang Liu
Affiliation:
School of Photovoltaic & Renewable Energy Engineering, The University of New South Wales, Sydney 2052, Australia.
Ning Song
Affiliation:
School of Photovoltaic & Renewable Energy Engineering, The University of New South Wales, Sydney 2052, Australia.
Wei Li
Affiliation:
School of Photovoltaic & Renewable Energy Engineering, The University of New South Wales, Sydney 2052, Australia.
Chang Yan
Affiliation:
School of Photovoltaic & Renewable Energy Engineering, The University of New South Wales, Sydney 2052, Australia.
Gavin Conibeer
Affiliation:
School of Photovoltaic & Renewable Energy Engineering, The University of New South Wales, Sydney 2052, Australia.
Martin Green
Affiliation:
School of Photovoltaic & Renewable Energy Engineering, The University of New South Wales, Sydney 2052, Australia.
*
*Email: h.cui@unsw.edu.au
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Abstract

The focus of this work is on back contact improvement for sputtered CZTS thin film solar cells. Three methods have been investigated including a thin Ag coating, a thin ZnO coating on the Mo back contact and rapid thermal annealing of the back contact. All of these methods have been found to reduce defects such as voids as well as secondary phases at the back contact region and inhibit the formation of MoS2. Consequently all the mothods effectively enhances Voc, Jsc, FF and therefore efficiency significantly.

Keywords

photovoltaicpolycrystalenvironmentally benign
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1638: Symposium W – Next-Generation Inorganic Thin-Film Photovoltaics , 2014 , mrsf13-1638-w10-03-z04-03
Copyright
Copyright © Materials Research Society 2014 

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References

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