采用溶胶-凝胶法制备Cu-Zn-Sn-S前驱体薄膜,在氩及硫两种气氛下对前驱体进行480℃热处理。利用X射线衍射仪(XRD)、拉曼光谱仪(Raman)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)和紫外-可见分光光度计(UV-Vis)对薄膜的微观结构、表面形貌和光学性能进行表征。研究结果表明,前驱体薄膜在硫气氛下热处理生成CZTS相,其形貌为花状,尺寸大小约为1.8μm。硫化后的薄膜具有较大的吸收系数,测试后估算其禁带宽度约为1.5eV。
Cu-Zn-Sn-S precursor films prepared by sol-gel method were annealed under the atmosphere of argon and sulfur at the tempreture of 480℃.The microstructure,morphology and optical property of thin films were investigated by X-ray diffraction (XRD),Raman scattering (Raman),transmission electron microscopy (TEM),scanning election microscopy (SEM) and UV-visible spectrophotometer (UV-Vis).CZTS phase was formed when the precursor film annealed under sulfur atmosphere.The flowerlike particles were observed and the particle size was about 1.8μm.The thin film had a large absorption coefficient and the band gap was estimated to be 1.5eV.
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基金资助
吉林师范大学博士科研启动项目(2015016)
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