Preparation and Characterization of Cu2ZnSnSe4 Thin Films by Selenization of Electrodeposited Metal Precursors

Ji Li; Zhong Wei Zhang; Yang Ou; Wei Feng Liu; Guo Shun Jiang; Chang Fei Zhu

doi:10.4028/www.scientific.net/MSF.685.105

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HomeMaterials Science ForumMaterials Science Forum Vol. 685Preparation and Characterization of Cu2ZnSnSe4...

Preparation and Characterization of Cu₂ZnSnSe₄ Thin Films by Selenization of Electrodeposited Metal Precursors

Abstract:

Cu₂ZnSnSe₄ thin films were prepared by selenization of electrodeposited Cu-Zn-Sn precursors. The Cu-Zn-Sn precursors were electrodeposited on the Mo-coated glass substrates from an electrolyte containing copper sulfate, zinc sulfate, tin (II) sulfate at a fixed potential between -1.2V and -1.25V vs. saturated calomel electrode, then the Cu₂ZnSnSe₄ thin films were obtained by selenizing Cu-Zn-Sn precursors in elemental selenium atmosphere at different temperatures. The structure, composition and optical properties of the films were investigated by X-ray diffraction, Energy dispersive spectrometry and UV-VIS absorption spectroscopy. The CZTSe films have a stannite structure and an optical band-gap about 1.6 eV which is suitable for fabricating solar cells.

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Materials Science Forum (Volume 685)

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105-109

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https://doi.org/10.4028/www.scientific.net/MSF.685.105

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Online since:

June 2011

Authors:

Ji Li, Zhong Wei Zhang, Yang Ou, Wei Feng Liu, Guo Shun Jiang, Chang Fei Zhu

Keywords:

Cu₂ZnSnSe₄, Electro-Deposition, Solar Cell

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