′�?, with a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds to your crystal IR absorption edge, as an alternative to the residual absorption peak. Density practical idea computations demonstrate the residual absorption of your BGSe https://williamg802fcx1.theideasblog.com/profile