The Growth and Characterization of CdS Thinfilm by Solution Technique

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Abstract

We have successfully grown cadmium I1 sulphide (CdS)thin film on glass substrate, using Tioethanolamine (TEA) as canplexing agent, cadmium acetate (Cd(CH3COO)2. ZH20 1,ANiionle solution (NH3), and Thiourea (SC(NH2l2) at a pH of ll* We have shown that CdS cannot grow in acid medi~~rn. We have also successfully characterized CdS thin film with a view of optimizing the growth parameters. Absorbance measurements revealed a CdS handgap of 2.43eV. Thickness of the films were measured and an optimum thickness of 15.6 x IO*? was obtained at the 6 hours of deposition time, uslng Sml of 7.45M TEA and 1Oml in Cd(CH3COO)2.2H20. 1OmlSC(NH2)2.

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