The aggregation and characteristics of radiation-induced defects in lithium fluoride nanocrystals

It has been established that diffusion activation energies for anion vacancies and centres in lithium fluoride nanocrystals are higher than those in bulk crystals. In nanocrystals, centres migrating in the range of the temperature close to room temperature is not observed and these centres remain st...

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Bibliographic Details
Published in:Radiation effects and defects in solids 2013-02, Vol.168 (2), p.130-136
Main Authors: Voitovich, A. P., Kalinov, V. S., Korzhik, M. V., Martynovich, E. F., Runets, L. P., Stupak, A. P.
Format: Article
Language:English
Subjects:
61. 80-X
Agglomeration
aggregation
Color centers
Crystal defects
Crystals
Diffusion
Fluorides
Lithium
Lithium fluoride
lithium fluoride nanocrystals
Luminescence
Nanocrystals
photoluminescence
radiation-induced defects
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Summary:It has been established that diffusion activation energies for anion vacancies and centres in lithium fluoride nanocrystals are higher than those in bulk crystals. In nanocrystals, centres migrating in the range of the temperature close to room temperature is not observed and these centres remain stable. The ratio of centres and F 2 concentrations in nanocrystals is higher than in bulk crystals. A new type of colour centres, which is absent in bulk crystals, is discovered in nanocrystals.
ISSN:1042-0150
1029-4953
DOI:10.1080/10420150.2012.738210