CuInS_2微米颗粒的液相回流法制备、表征与工艺优化  

Synthesis and characterization of CulnS_2 micro-particles synthesized by aqueous synthesis method and its process optimization

作　　者：李绍文[1] 周继承[1] 游亮[1] 

机构地区：[1]中南大学能源科学与工程学院,长沙410083

出　　处：《中国有色金属学报》2013年第5期1380-1387,共8页The Chinese Journal of Nonferrous Metals

基　　金：湖南省科技计划重大专项(08FJ1002)

摘　　要：以三乙烯四胺和乙二醇(1:1,体积比)为混合溶剂,在常压下于200℃反应2 h,由液相回流法合成了CuInS2微米颗粒。用XRD、SEM、EDS和UV-Vis spectra技术分别表征产物的物相、形貌、组分以及光学特性。结果表明:所合成的产物为纯相黄铜矿结构CuInS2微米颗粒,结晶度良好,满足化学计量比,光学禁带宽度为1.43 eV。反应温度对产物的物相影响较大,而对形貌的影响较小;反应温度为200℃时,CuInS2的性能最佳。反应时间对产物的物相和形貌的影响不大,反应时间达2 h,反应基本完成。With a mixed solvent of triethylenetetramine-ethylene glycol （1：1, v/v）, CuInS2 micro-particles were synthesized by an aqueous synthesis method at 200 ℃ for 2h under the open-air condition. The phase constituents, morphology, structure and optical properties of the as-prepared CuInS2 powders were characterized by X-ray diffraction （XRD）, scanning electron microscope （SEM）, energy dispersive spectrometer （EDS） and ultraviolet-visible （UV-vis） spectrophotometry. The results show that the synthesized products are chalcopyrite CuInS2 micro-particles, which have single phase, high crystallinity and stoichiometric composition, and their optical energy band gaps is 1.43 eV. The react temperature has a great influence on phase and a little influence on morphology under the experimental condition. CulnS2 has the best property when the react temperature is chosen as 200 ~C. The react time has a little influence both on phase and morphology, the reaction is basically completed when the react time is up to 2 h.

关 键 词：CuInS2 太阳能电池材料 液相回流法 光学特性 

分 类 号：TB3[一般工业技术—材料科学与工程] TN304.2[电子电信—物理电子学]