A comparative analysis of the spectral characteristics of triplet self-trapped excitons and F<sub>2</sub> centers in alkali halide crystals

Abstract

A comparative analysis of the spectral characteristics of self-trapped excitons (STE) and F₂ centers in the states with the same spin multiplicity is carried out. Based on the analysis, a criterion for the separation of the triplet-triplet (T-T) absorptive transitions in the electronic and hole components of the STE in any alkali halide crystal is proposed. It is concluded that inhomogeneities in the form of a homological cation or anion impurity in the nearest coordination shells of the spatial position of the STE, rather than hole, affect the spectral position of the T-T transitions in the electron component of the STE.

Original language	English
Pages (from-to)	2235-2239
Number of pages	5
Journal	Physics of the Solid State
Volume	44
Issue number	12
DOIs	https://doi.org/10.1134/1.1529917
Publication status	Published - 1 Dec 2002

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Lisitsyna, L. A., Korepanov, V. I., & Lisitsyn, V. M. (2002). A comparative analysis of the spectral characteristics of triplet self-trapped excitons and F₂ centers in alkali halide crystals. Physics of the Solid State, 44(12), 2235-2239. https://doi.org/10.1134/1.1529917

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PY - 2002/12/1

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N2 - A comparative analysis of the spectral characteristics of self-trapped excitons (STE) and F2 centers in the states with the same spin multiplicity is carried out. Based on the analysis, a criterion for the separation of the triplet-triplet (T-T) absorptive transitions in the electronic and hole components of the STE in any alkali halide crystal is proposed. It is concluded that inhomogeneities in the form of a homological cation or anion impurity in the nearest coordination shells of the spatial position of the STE, rather than hole, affect the spectral position of the T-T transitions in the electron component of the STE.

AB - A comparative analysis of the spectral characteristics of self-trapped excitons (STE) and F2 centers in the states with the same spin multiplicity is carried out. Based on the analysis, a criterion for the separation of the triplet-triplet (T-T) absorptive transitions in the electronic and hole components of the STE in any alkali halide crystal is proposed. It is concluded that inhomogeneities in the form of a homological cation or anion impurity in the nearest coordination shells of the spatial position of the STE, rather than hole, affect the spectral position of the T-T transitions in the electron component of the STE.

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