Cu2ZnSnS4 thin film solar cell fabricated by magnetron sputtering and sulfurization

Jian Chen, Chang Yan, Wei Li, Ning Song, Fangyang Liu, Shujuan Huang, Xiaojing Hao, Martin A. Green

Research output: Contribution to journalConference paper

1 Citation (Scopus)

Abstract

In this work, sulfurizing metal precursors prepared by magnetron sputtering was applied in Cu2ZnSnS4 (CZTS) thin film fabrication. Three precursor structures, namely substrate/ Zn/(Cu&Sn), substrate/Zn/Cu/Sn/Cu and substrate/Zn/Sn/Cu, were compared for their synthesized CZTS film quality. It is notable that CZTS film made of the precursor structure of substrate/Zn/(Cu&Sn) has the best film quality with no obvious voids and biggest average grain size. When applying this precursor structure into device fabrication, a working CZTS device with an efficiency of 2.26% was made. The impact of metal precursors on the structural property of CZTS film were characterised by SEM, XRD, Raman and TEM. Thick MoS2 interfacial layer (∼200nm) between absorber and back Mo contact and ZnS formed in the front and back absorber regions are the possible reasons limiting short-circuit current and fill factor of the cell.

Original languageEnglish
Pages (from-to)57-65
Number of pages9
JournalMRS Online Proceedings
Volume1638
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event2013 MRS Fall Meeting - Boston, MA, United States
Duration: 1 Dec 20136 Dec 2013

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