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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/4546

Title: Photoluminescence studies of spray pyrolytically grown nanostructured tin oxide semiconductor thin films on glass substrates
Authors: Junaid, Bushiri M
Saji, Chacko
Vaidyan, V K
Issue Date: 20-Oct-2006
Publisher: IOP Publishing LTD
Abstract: SnO2 nanocrystalline thin films were deposited on glass substrates by the spray pyrolysis technique in air atmosphere at 375, 400, 425, 450 and 500 ◦C substrate temperatures. The obtained films were characterized by using XRD. The room temperature photoluminescence (PL) spectra of these films have near band edge (NBE) and deep level emission under the excitation of 325 nm radiation. NBE PL peak intensity decreased consistently with temperatures for samples prepared at 400, 450 and 500 ◦C, while a sudden reduction in intensity is observed for the sample prepared at 425 ◦C. A similar effect was observed for the optical transmittance spectra. These effects can be explained on the basis of the change in population of oxygen vacancies as indicated by the change in a values
Description: J. Phys. D: Appl. Phys. 39 (2006) 4540–4543
URI: http://dyuthi.cusat.ac.in/purl/4546
Appears in Collections:Dr.Junaid Bushiri M

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