′�?, using a frequency of 295 cm−1, is attributed for the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−one phonon corresponds on the crystal IR absorption edge, rather than the residual absorption peak. Density functional theory computations display the residual absorption in the BGSe crystal originates https://bjorkg792fgd4.wikinarration.com/user