以金属盐氯化铜、氯化锌、氯化锡为原料,单乙醇胺和乙二醇甲醚作为溶剂,采用溶胶-凝胶法结合旋涂技术获得前驱体薄膜,分别经120℃和300℃的热板干燥后,在双温区管式炉中,于硫蒸气下硫化制备Cu2 ZnSnS4(CZTS)薄膜.利用X射线衍射(xRD)、拉曼光谱仪(Raman)、X射线能量色散谱(EDS)、扫描电子显微镜(SEM)和紫外-可见分光光度计(UV-Vis)等一系列测试设备对样品的结构、各组分的含量、表面形貌和光带隙进行表征分析.研究结果表明,CZTS前驱体薄膜在120℃的热板上干燥后,再经500℃硫化可制备出纯净的CZTS薄膜,禁带宽度接近1.52 eV.
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