′�?, which has a frequency of 295 cm−one, is attributed to the stretching vibration of Ga–Se bonds. The 2-phonon absorption of your 295 cm−one phonon corresponds to your crystal IR absorption edge, rather than the residual absorption peak. Density purposeful principle computations exhibit the residual absorption on the BGSe crystal https://betha589ywt0.worldblogged.com/profile