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Effect of in-situ $CdCl_{2}$ treatment on spray deposited CdTe films: Photoluminescence study

Krishna, Vamsi K and Dutta, V and Rao, Koteswara KSR (2003) Effect of in-situ $CdCl_{2}$ treatment on spray deposited CdTe films: Photoluminescence study. In: physica status solidi (a), 198 (2). pp. 143-146.

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Abstract

In-situ ${CdCl}_2$ treatment for spray deposited CdTe films has been done by spraying a 0.01 M ${CdCl}_2$ solution on CdS substrates. Scanning electron micrographs show the improvement in grain growth with the ${CdCl}_2$ spray. Photoluminescence spectra for films with the in-situ treatment show a shift in the bandgap by 0.06 eV and a reduction in the defect band intensity as compared to those for the films without the treatment. The shift is due to conversion of CdTe into CdTeS by S diffusion from the CdS substrate. Our studies show that an in-situ ${CdCl}_2$ treatment is effective in improving the CdTe thin film properties.

Item Type: Journal Article
Additional Information: The copyright belongs to WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 30 Aug 2005
Last Modified: 19 Sep 2010 04:19
URI: http://eprints.iisc.ernet.in/id/eprint/3568

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