Spray pyrolysis deposited Cr and In doped CdS films for laser application

By using the spray pyrolysis technique, CdS films uniform in composition and structure with different contents of chromium and indium ions were deposited on quartz substrates. Their structure, optical properties, and surface morphology were investigated. Employing the films as dopant sources, a correlation has been revealed between the composition of the films and the content of optically active centers in bulk ZnSe samples after doping at the HIP treatment. The process of Cr2+ ions diffusion in polycrystalline zinc selenide was studied, concentration profiles were measured, and the diffusion coefficients of Cr2+ions in one-side doped CVD-ZnSe samples were determined.