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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 818The Influence of Sulfurization Time and H2S...

The Influence of Sulfurization Time and H2S Concentration on the Properties of Cu2ZnSnS4 Thin Films

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Abstract:

CZTS thin films were fabricated through sulfurization of sputtered alloy precursors. The properties of CZTS films obtained at sulfurization time of less than 2 hours and at H₂S concentrations of higher than 15% were investigated. Sulfurization time of 30 min, 60 min and 90 min and H₂S concentrations of 20%, 40% and 60% have been chosen for the sulfurization process. It has been found that Cu poor and slightly Zn rich CZTS films can be obtained at all of those sulfurization time and H₂S concentrations. Changing the sulfurization time or H₂S concentrations wont change the compositions of sulfurized films. Minor SnS coexist with the dominate CZTS although the films are Zn rich and the distributions of Sn and S along the depth of the films are uniform. The films sulfurized at H₂S concentration of 20% have the biggest grain size of exceeding 2 μm and obvious columnar CZTS grains can be observed across the whole cross-section.

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Nanotechnology and Advanced Materials II

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Periodical:

Advanced Materials Research (Volume 818)

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3-8

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.818.3

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Online since:

September 2013

Authors:

Min Xie, Da Ming Zhuang, Ming Zhao, Bo Jian Li, Jun Song

Keywords:

CZTS, H₂S Concentration, Sulfurization Time, Thin Film

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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