′�?, that has a frequency of 295 cm−one, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption in the 295 cm−1 phonon corresponds on the crystal IR absorption edge, rather than the residual absorption peak. Density practical concept computations display that the residual absorption from the BGSe https://quincyq257jwi3.blogpixi.com/profile