Synthesis of CuInSe_2 nanoparticles by phase transformation of In_2Se_3 via wet chemical process in low temperature  

作　　者：李士娜 马瑞新 朱鸿民 

机构地区：[1]School of Metallurgical and Ecological Engineering University of Science and Technology Beijing [2]Beijing Key Laboratory of Green Recycling and Extraction of Metals

出　　处：《Optoelectronics Letters》2014年第4期244-246,共3页光电子快报（英文版）

摘　　要：Chalcopyrite-type CuInSe2 nanoparticles are successfully prepared by using In2Se3 nanoparticles as a precursor reacted with copper chloride(CuCl) solution via a phase transformation process in low temperature. The reaction time is a key parameter. After the reaction time increasing from 0.5 h to 8 h, In2Se3 and CuCl react with each other gradually via phase transformation into CuInSe2 without any intermediate phase. The crystalline structure and morphology of the CuInSe2 nanoparticles are characterized by X-ray diffraction(XRD) and field emission scanning electron microscopy(FESEM). The diameter of CuInSe2 nanoparticles with good dispersibility ranges from 10 nm to 20 nm. The band gap of the CuInSe2 nanoparticles is 1.04 eV calculated from the ultraviolet-visible(UV-VIS) spectrum.Chalcopyrite-type CulnSe2 nanoparticles are successfully prepared by using In2Se3 nanoparticles as a precursor reacted with copper chloride （CuCl） solution via a phase transformation process in low temperature. The reaction time is a key parameter. After the reaction time increasing from 0.5 h to 8 h, In2Se3 and CuCl react with each other gradually via phase transformation into CuInSe2 without any intermediate phase. The crystalline structure and morphology of the CuInSe2 nanoparticles are characterized by X-ray diffraction （XRD） and field emission scanning electron microscopy （FESEM）. The diameter of CuInSe2 nanoparticles with good dispersibility ranges from 10 nm to 20 nm. The band gap of the CulnSe2 nanoparticles is 1.04 eV calculated from the ultraviolet-visible （UV-VIS） spectrum.

关 键 词：CulnSe2 纳米颗粒 相变过程 场发射扫描电子显微镜 化学过程 低温 CUINSE2 合成 

分 类 号：TM914.4[电气工程—电力电子与电力传动]