Research progress on zinc-based buffer layers in copper-zinc-tin-sulfur-based thin film solar cells
Thin film solar cells possess low cost,easy production,and high stability,and overcome the shortcom-ings of crystal solar cells such as high raw material requirements and complex preparation process.The buffer layer,as an important part of thin film solar cells,has received a lot of attention.Recently,nontoxic and envi-ronmentally friendly buffer layers with high efficiency have been widely studied.Herein,we take Cu2ZnSnS4 thin film solar cells as an example to review the applications of zinc sulfide(ZnS),zinc oxide(ZnO),zinc oxysul-fide(Zn(O,S)),zinc tin oxide(ZTO),and zinc magnesium oxide(ZMO)film materials as buffer layers in solar cells.The preparation methods,performance changes,application prospects and effects on the conversion efficiency of solar cells of five buffer layer materials are described in detail,so as to provide effective reference for the preparation of high efficiency and environmental protection thin film solar cells in the future.
thin-film solar cellzinc-based buffer layerconversion efficiencyband matching
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维普
