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Novel solution processing of high-efficiency Earth-abundant Cu2 ZnSn(S,Se)4 solar cells
Wenbing Yang1, Hsin-Sheng Duan, Brion Bob
1University of California Los Angeles, Department of Materials Science and Engineering, 90095, United States.
Abstract:
A novel solution-based approach is presented to process earth-abundant Cu(2)ZnSn(S,Se)(4) absorbers using fully dissolved CZTS precursors in which each of the elemental constituents intermix on a molecular scale. This method enables the low-temperature processing of chemically clean kesterite films with excellent homogeneity. The high performance of resulting optoelectronic devices represents a chance to extend the impact of CZTS into the next chapter of thin-film solar cells.
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