′�?, using a frequency of 295 cm−1, is attributed into the stretching vibration of Ga–Se bonds. The 2-phonon absorption on the 295 cm−1 phonon corresponds towards the crystal IR absorption edge, instead of the residual absorption peak. Density functional idea computations exhibit the residual absorption from the BGSe crystal originates https://jaidenhxvrm.amoblog.com/considerations-to-know-about-baga4se7-crystal-54650633