NDLI: Effect of composition on high efficiency CZTSSe devices fabricated using co-sputtering of compound targets

Content Provider	IEEE Xplore Digital Library
Author	Chawla, V. Clemens, B.
Copyright Year	2012
Description	Author affiliation: Stanford University, CA 94305, USA (Clemens, B.) \|\| AQT Solar, Sunnyvale, CA 94086, USA (Chawla, V.)
Abstract	Recent work on Cu2ZnSn(S,Se)4 (CZTSSe) has shown that it is an excellent candidate for use in thin film solar cells due to its earth abundant, inexpensive, non-toxic constituents and optimal material properties. However, the composition window for growth of CZTSSe capable of high efficiency is still unknown. The focus of this work is to use sputter deposition to synthesize this material as a thin film and determine a composition window for growth of high efficiency CZTSSe devices. CZTSSe thin films of various compositions were grown using co-sputtering of compound targets followed by an anneal at high temperature. Efficiency of devices was mapped as function of copper, zinc, tin, selenium and sulfur content in the films. Extraneous phases that are relatively benign (ZnS, SnS2) and those that are detrimental (Cu2S) to device performance were identified using x-ray diffraction. The range of efficiencies mapped in this work was 0–8% and the best efficiency achieved using this fabrication process was 9.3%.
Starting Page	002990
Ending Page	002992
File Size	4067581
Page Count	3
File Format	PDF
ISBN	9781467300643
ISSN	01608371
e-ISBN	9781467300667
DOI	10.1109/PVSC.2012.6318212
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Films Zinc Tin Photovoltaic cells Copper X-ray scattering solar cells CZTS CZTSSe photovoltaic cells
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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