Investigations on SnS films deposited by spray pyrolysis

Ramakrishna Reddy, Kotte, Purandar Reddy, P., Miles, Robert and Datta, Psantu (2001) Investigations on SnS films deposited by spray pyrolysis. Optical Materials, 17 (1-2). pp. 295-298. ISSN 0925 3467

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Official URL: http://dx.doi.org/10.1016/S0925-3467(01)00052-0

Abstract

Thin films of SnS have been deposited on conducting glass substrates using spray pyrolysis. The spray solution consisted of tin chloride and thiourea dissolved in a mixture of isopropyl alcohol and water. The substrate temperature was varied in the range, 100-450°C. The films formed at growth temperatures between 300°C and 360°C were polycrystalline, single phase and nearly stoichiometric with a strong {1 1 1} preferential orientation. These films were p-conductivity type with an electrical resistivity of 30 Ω cm and a net carrier concentration of 1.2 × 1015 cm-3. These layers had a direct band gap of 1.32 eV. The films deposited at temperatures <300°C and >360°C deviated from stoichiometry with other chemical phases present.

Item Type: Article
Uncontrolled Keywords: Chemical spray pyrolysis, composition, electrical properties, optical band gap, structure, tin sulphide
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 13 Feb 2015 10:41
Last Modified: 06 Apr 2016 11:12
URI: http://nrl.northumbria.ac.uk/id/eprint/19313

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