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Synthesis of Cu2ZnSnSe4 thin film solar cells from nanoparticles by a non-vacuum mechanical ball milling and rapid thermal processing

ying liu, Xiaowei Xu, Ke Liu, Huihong Liu
2020 Micro & Nano Letters  

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A truly simple, reproducible, and environmentally friendly non-vacuum synthesis method for synthesising of carbon-free Cu 2 ZnSnSe 4 (CZTSe) absorber layer has been presented. The stannite CZTSe nanoparticles with an average size of about 20 nm distributions were fabricated by an ambient mechanical milling procedure using Cu 2 Se, Zn, Sn, elemental selenium powders as raw materials and non-toxic ethanol as solvent. The compact CZTSe thin films were formed via an annealing treatment under Ar/Se
more » ... tmosphere using rapid thermal processing. The optical properties of the obtained CZTSe thin films are the absorption coefficient (α) exceeding 10 4 cm −1 and E g of 0.91 eV. The electrical properties of the CZTSe thin films indicate p-type semiconductor behaviour. The photovoltaic properties of this solar cell are power conversion efficiency of 0.18%.
doi:10.1049/mnl.2019.0788 fatcat:522mip4xrbfljlc2lngwljuify
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ying liu, Xiaowei Xu, Ke Liu, Huihong Liu. "Synthesis of Cu2ZnSnSe4 thin film solar cells from nanoparticles by a non-vacuum mechanical ball milling and rapid thermal processing." Micro & Nano Letters 15.13 (2020)