Structure of copper halide nanocrystals in photochromic glasses

The crystal structure of CuCl nanocrystals with effective radii ranging from 2.4 to 18.5 nm in photochromic glasses heat treated under different conditions is investigated using exciton spectroscopy, x-ray powder diffraction, and small-angle x-ray scattering. It is revealed that the size dependence...

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Bibliographic Details
Published in:Physics of the solid state 2008-07, Vol.50 (7), p.1352-1356
Main Authors: Akopyan, I. Kh, Golubkov, V. V., Dyatlova, O. A., Novikov, B. V., Tsagan-Mandzhiev, A. N.
Format: Article
Language:English
Subjects:
Low-Dimensional Systems and Surface Physics
Physics
Physics and Astronomy
Solid State Physics
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Summary:The crystal structure of CuCl nanocrystals with effective radii ranging from 2.4 to 18.5 nm in photochromic glasses heat treated under different conditions is investigated using exciton spectroscopy, x-ray powder diffraction, and small-angle x-ray scattering. It is revealed that the size dependence of the energy of the Z 3 exciton exhibits an anomalous behavior. The results obtained suggest that small-sized CuCl nanocrystals can crystallize in a modification different from the stable cubic modification.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783408070263