Study of the Structural, Morphological and Optical Properties of Pure and Doped SrS Thin Films Prepared by Chemical Bath Deposition

Thin film of pure and Nickel sulphate (NiSO ₄ ), Ocimum tenuiflorum (TULSI LEAF) doped Strontium sulfide (SrS) were prepared by chemical bath deposition technique. The films are prepared by 1M concentration and annealed at a temperature of 200K. The structural, morphological and composition of the thin films were investigated by X-ray diffraction, scanning electron microscopy (SEM), and energy dispersive analysis spectrum (EDAX) respectively. XRD reveals the cubic structure of the prepared films. SEM results showed the surface morphology of the samples. EDAX spectrum confirms to presence the all the compound. The optical properties of the films are measured to determine the absorption, and also the band gap values with the help of UV. From the PL spectra revealed the effect of impurities on the absorption and emission of both pure and doped SrS thin films.