′�?, with a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds into the crystal IR absorption edge, in lieu of the residual absorption peak. Density useful concept computations display which the residual absorption of your BGSe https://ciceroh443vjv8.wikiworldstock.com/user