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Fekri N, Eshghi H. Influence of annealing on morphology, structural, electrical and optical properties of nanostructured CdS thin films prepared by chemical bath deposition (CBD) technique. ICOP & ICPET _ INPC _ ICOFS 2018; 24 :481-484
URL: http://opsi.ir/article-1-1586-en.html
URL: http://opsi.ir/article-1-1586-en.html
1- Department of Physics, Shahrood University of Technology
Abstract: (2256 Views)
In this study, cadmium sulphide (CdS) thin layer was deposited on glass substrate by chemical bath deposition technique, and then annealed at 400 oC for 1 h. The FESEM images indicated the effect of annealing on surface morphology and increment of nano-grain sizes from 45 to 55 nm. The structural characterization using XRD spectra showed an amorphous structure in the as-grown sample and hexagonal structure after annealing. Also studying the electrical properties together with the optical properties revealed that the band gap of the layer has decreased from 2.30 to 2.10 eV as a result of band tail formation due to sulfur vacancies.
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