Temperature dependence of raman spectra of Cu2ZnSnSe4 thin films

Abstract

For CZTSe tetragonal structured film prepared by selenization of layer-by-layer and pre-annealed Cu-Zn-Sn metal precursor on flexible Ta substrate, temperature dependencies of the position and full width at a half maximum for the A-modes (171 and 195 cm-1 ) were obtained in the 24–290 K temperature range and were successfully approximated by the linear and Klemens model equations. From the obtained dependencies, the coefficients of the Klemens equations, as well as the temperature coefficients for Raman shifts and peak widths were calculated.