Author： Öztaş Mustafa Bedir Metin Ocak Şule Yıldırım R.
Publisher： Springer Publishing Company
ISSN： 0957-4522
Source： Journal of Materials Science: Materials in Electronics, Vol.18, Iss.5, 2007-05, pp. : 505-512
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Abstract
ZnS thin films were prepared by spray pyrolysis technique using aqueous of zinc chloride and thiourea at molar ratio of 1:1, 1:2, and 2:1. The depositions were carried out on substrates heated from 400 to 520 °C The films were then annealed under sulphur atmosphere for 90 min at 450 and 550 °C. The crystallites exhibit preferential orientation along the [002]α or [111]β directions. The films were characterized by XRD and SEM. The structure and morphology of sprayed films are controlled by both, the substrate temperature and the precursors molar ratio in the solution. The values of optical bandgap have been determined from the absorption spectra.
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