Manifestation of metastable cubic modifications in finely dispersed A2B6 compounds

The presence of metastable cubic modifications has been revealed by X-ray diffraction in polycrystalline CdS and CdSe powders with grain sizes on the order of several dozen nanometers. The optical reflection and photoluminescence spectra of the cubic CdS phase have been measured in the temperature i...

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Bibliographic Details
Published in:Technical physics letters 2010, Vol.36 (3), p.240-243
Main Authors: Akopyan, I. Kh, Ivanova, T. I., Labzovskaya, M. É., Novikov, B. V., Érdni-Goryaev, A.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Physics
Physics and Astronomy
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Summary:The presence of metastable cubic modifications has been revealed by X-ray diffraction in polycrystalline CdS and CdSe powders with grain sizes on the order of several dozen nanometers. The optical reflection and photoluminescence spectra of the cubic CdS phase have been measured in the temperature interval of 77–295 K. The main exciton transition energies and the temperature coefficients of the bandgap width variation have been determined.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785010030120