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Specific Features of the Temperature Quenching of Luminescence of Self-Trapped Excitons in Alkali Halide Crystals under Low-Temperature Deformation
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Shunkeev, K., Sarmukhanov, E., Barmina, A., Myasnikova, L., Sagimbaeva, Sh. and Shunkeev, S. (2008) Specific Features of the Temperature Quenching of Luminescence of Self-Trapped Excitons in Alkali Halide Crystals under Low-Temperature Deformation. PHYSICS OF THE SOLID STATE, 50 (10). pp. 1799-1802. doi:10.1134/S1063783408100016 ISSN 1063-7834.
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Official URL: http://dx.doi.org/10.1134/S1063783408100016
Abstract
The activation energy of temperature quenching of luminescence of self-trapped excitons in alkali halide crystals subjected to low-temperature uniaxial deformation is evaluated experimentally. It is found that an increase in the activation energy is observed in the following series of crystals: KBr --> NaCl --> KI --> NaBr --> CsBr --> RbI. The effect of enhancement of intrinsic luminescence of alkali halide crystals due to the lowering of the symmetry of the crystal lattice under low-temperature uniaxial deformation is interpreted by analyzing the observed increase in the activation energy that characterizes the height of the potential barrier separating channels of radiative and nonradiative decay (with the formation of radiation defects) of self-trapped excitons.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICS OF THE SOLID STATE | ||||
Publisher: | MAIK NAUKA/INTERPERIODICA/SPRINGER | ||||
ISSN: | 1063-7834 | ||||
Official Date: | October 2008 | ||||
Dates: |
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Volume: | 50 | ||||
Number: | 10 | ||||
Number of Pages: | 4 | ||||
Page Range: | pp. 1799-1802 | ||||
DOI: | 10.1134/S1063783408100016 | ||||
Publication Status: | Published |
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