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Room Temperature Deposition of Nanocrystalline CdS Thin Film by Successive Ionic Layer Adsorption and Reaction (SILAR) Method

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Author Affiliations

  • 1P.S.G.V.P.M’S Arts, Science and Commerce College Shahada, Dist- Nandurbar - 425 409, INDIA
  • 2S.P.D.M. Arts, Commerce and Science College, Shirpur, INDIA

Res. J. Material Sci., Volume 1, Issue (1), Pages 21-25, February,16 (2013)

Abstract

Cadmium Sulphide (CdS) thin films are deposited on glass substrate by relatively simple, quick and cost effective successive ionic layer adsorption and reaction (SILAR) method at room temperature (27C). For fine nanocrystalline thin film growth the parameters including concentrations of cationic and ionic precursors, number of immersion cycle, immersion time and pH of the solution are optimized. A further study has been made for structural, surface morphological and optical properties of the film using X-ray diffraction (XRD), EDAX, scanning electron microscopy (SEM), Atomic force electron microscopy (AFM) and optical absorption method. The as deposited CdS nanocrystlline film exhibited hexagonal phase with optical band gap (Eg) of 2.20eV and electrical resistivity 10-cm. SEM and AFM images confirmed that films of smooth surface morphology and nanocrystalline nature with fine crystallites 40 nm diameter respectively.

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