Study of Some Optical Properties of PbS Thin Films Deposited by Chemical Spray Pyrolysis Method
Ban Kalid Mohammed

In this research we prepared PbS thin films by Spray pyrolysis method on a glass substrates and we study its optical properties . The result of (X-Ray ) diffraction showed that thin films have a polycrystalline structure , The relation of The Absorption and The transmission as a function of Photon Energy for the PbS films had been studied , The optical energy gap of the direct allowed transitions for the PbS is (0.41 eV). The optical Absorption coefficient , extinction coefficient , Refractive Index, Reflection of Coefficient and Extinction Coefficient as a function of Photon Energy have been studied.