Studies on thin films of ZnSe on GaAs prepared by a chemical deposition method

Abstract
Thin films of zinc selenide have been deposited for the first time by a simple technique known as the liquid-gas interface reaction technique. Deposited films were studied using X-ray diffraction, transmission electron microscopy and optical absorption. The films deposited at a higher bath temperature of 80 degrees C are polycrystalline in nature. The optical band gap is found to be 2.62 eV. The low angle X-ray diffraction shows that three phases, namely Ga2Se3, As2Se3 and Zn3As2, are formed after annealing ZnSe films on GaAs at different temperatures.