Turkish Journal of Physics

Abstract: The study of Cd_1-xZn_xS (0\leq x \leq 0.6) films obtained by method of chemical deposition from aqueous solution on glass ceramic substrates via interaction of thiourea with cadmium and zinc salts. In Cd_1-xZn_xS films just subsequent to their deposition 1/f-type noise is clearly revealed and is attributed to collective barries. In the frequency range above a few kilohertz the generation-recombination noises predominate In Cd_1-xZn_xS films after heat treatment in air at 500^\circC, generation-recombination noise dominates at relative frequencies. The noise level of Cd_1-xZn_xS films (0\leq x\leq 0,2) after heat treatment shows that they are useful as threshold radiation detectors (P_thr=10^-12W).