Study of CuInSe2 Formation Kinetics in the Selenization Process by Raman Spectroscopy

Abstract
Formation kinetics of polycrystalline CuInSe2 films in selenization of Cu/In/Se stacked layers was studied using Raman spectroscopy. Raman spectra of the films clearly show a structural change of the film at elevated temperatures. It is concluded that Cu is selenized preferentially at low temperatures around 200°C and that the CuInSe2 phase is formed at temperatures above 250°C.