INORGANIC MATERIALS, vol.34, pp.205-206, 1998 (SCI-Expanded)
Residual conductivity, impurity photoconductivity, and IR quenching of intrinsic photocurrent were studied in GaSe layered crystals doped with Dy to 10(-5)-10(-1) at %. Doping with Dy was found to cause drastic changes in the photoelectric behavior of GaSe. Based on the results obtained for GaSe, a generalized multicenter model is proposed for III-VI layered crystals.