光电子快报(英文版), 2014, 10 (4): 244, Published Online: Oct. 12, 2017
Synthesis of CuInSe2nanoparticles by phase transformation of In2Se3via wet chemical process in low temperature
Abstract
Chalcopyrite-type CuInSe2nanoparticles are successfully prepared by using In2Se3nanoparticles 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, In2Se3and CuCl react with each other gradually via phase transformation into CuInSe2 without any intermediate phase. The crystalline structure and morphology of the CuInSe2nanoparticle2are 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 CuInSe2nanoparticles is 1.04 eV calculated from the ultraviolet-visible (UV-VIS) spectrum.
LI Shi-na, MA Rui-xin, ZHU Hong-min. Synthesis of CuInSe2nanoparticles by phase transformation of In2Se3via wet chemical process in low temperature[J]. 光电子快报(英文版), 2014, 10(4): 244.