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Peculiarities of the triplet relaxed excited state structure in thallium-doped cesium halide crystals.

Nagirnyi, V. and Stolovich, A. and Zazubovich, S. and Zepelin, Viktor and Nikl, M. and Mihokova, E. and Pazzi, G. P. (1995) Peculiarities of the triplet relaxed excited state structure in thallium-doped cesium halide crystals. Radiation Effects and Defects in Solids: Incorporating Plasma Science and Plasma Technology, 135 (1-4). pp. 379-382. ISSN 1042-0150

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Abstract

Four bands, all belonging to the main thallium centre, are detected in the tripler luminescence spectrum of thallium-doped cesium halides under excitation in impurity absorption bands. Their spectral, polarization and kinetics characteristics are studied at 0.35 to 360 K. The parameters of the corresponding relaxed excited states (RES) minima are calculated. Two ultraviolet emission bands are ascribed to electronic transitions from trigonal and tetragonal Jahn-Teller minima of the triplet RES of Tl+ ion. Two visible bands are assumed to arise from two different off-centre configurations of a self-trapped exciton perturbed by Tl+ ion.

Item Type: Article
Journal or Publication Title: Radiation Effects and Defects in Solids: Incorporating Plasma Science and Plasma Technology
Uncontrolled Keywords: self-trapped exciton ; luminescence polarization ; decay kinetics 'thallium-doped cesium halides'
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23549
Deposited By: Dr Richard P. Haley
Deposited On: 03 Feb 2009 13:47
Refereed?: Yes
Published?: Published
Last Modified: 05 Nov 2014 16:53
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23549

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