本文以油胺为溶剂,采用液相法制备了Cu2 ZnSnS4 (CZTS)纳米颗粒,通过CZTS纳米浆滴涂法制备了CZTS薄膜,而后经固态硒源硒化工艺得到了CZTSSe薄膜,研究了制备工艺条件反应温度、气压、物质配比及退火温度等对样品的晶体结构及成分的影响.采用X射线衍射仪(XRD)、热重-差示扫描量热法(TG-DSC)、能谱分析(EDAX)对制备的CZTS粉末和CZTSSe薄膜样品进行了表征,结果表明在化学计量比和保压的条件下可得到单相性较好的前驱体粉末,由此得到的CZTSSe薄膜在500℃的硒化退火温度下能够形成具有单一锌黄锡矿结构、结晶程度较好的薄膜;由EDAX的成分分析结果可知,薄膜具有贫铜的成分,而且,随着温度的升高,Se元素含量增加最后趋于平稳,而S元素含量先减少后有增加趋势.
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