The Effects of Different Technologies on Synthesis of CuInSe₂ Prepared by Coreduction

Abstract

Solution thermal method was used to synthesize CuInSe2 powders from metal chlorides and SeO2 at 160~200°C. The phases of product samples were analyzed by x-ray diffraction (XRD), the size and morphology of the products were observed by JSM6380LA scanning electron microscope (SEM). The aim is to explore the best technology to obtain the pure CuInSe2 powders. Experimental results show that, CuInSe2 phase can be formed with metal chlorides by reacting for 20 h at 160°C, 180°C and 200°C and has XRD peaks corresponding to (112), (204) and (312) crystal planes, respectively. It consists of irregular spherical grains with about 0.2~0.5 μm in diameter, which agglomerate larger particles with average particle size about 1~3 μm. CuInSe2 phase was formed more easily at the temperature higher than 180°C and shows better crystallinity.

Chemically Deposited CuInSe2 Thin Films and their Photovoltaic Properties: A Review

“…XRD pattern chalcopyrite (tetragonal) structure of synthesized samples. SEMand [166] indium (In), sulfur (S), selenium (Se) deionized water TEM analyses show that samples were composed of cubes with the size of nanometers.…”