′�?, which has a frequency of 295 cm−1, is attributed towards the stretching vibration of Ga–Se bonds. The two-phonon absorption of the 295 cm−one phonon corresponds for the crystal IR absorption edge, rather than the residual absorption peak. Density practical theory computations show which the residual absorption on the BGSe https://quentinv245kfz1.yomoblog.com/profile