Compositional studies of optical parameters in (Ag3AsS3)x(As2S3)1–x (x = 0.3; 0.6; 0.9) thin films Journal title: Semiconductor Physics, Quantum Electronics and Optoelectronics Authors: I. P. Studenyak, M. Kranjčec, M. M. Kutsyk, Yu. O. Pal, Yu. Yu. Neimet, V. Yu. Izai, I. I. Makauz, C... Subject(s):