′�?, using a frequency of 295 cm−1, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption from the 295 cm−one phonon corresponds to your crystal IR absorption edge, rather then the residual absorption peak. Density useful theory computations exhibit the residual absorption of the BGSe crystal originates https://michaelj023ezu9.wikiconversation.com/user