Backward Raman scattering were done to study the optical phonon spectra of CuInS2 single crystals, and one A1 mode, two B2 modes and five E modes of optical phonons in CuInS2 have been assigned.
Shen, C. C., Shu, C. K., Lin, H. C., Chen, W. K., Chen, W. H., & Lee, M. C. (1998). Phonon-Plasmon Interaction in GaN Films Studied by Raman Scattering. Chinese Journal of Physics, 36(1), 27-31. https://www.airitilibrary.com/Article/Detail?DocID=05779073-199802-201210260026-201210260026-27-31