A new model for the visible emission of the CsI: Tl crystal.

Nagirnyi, V. and Zazubovich, S. and Zepelin, Viktor and Nikl, M. and Pazzi, G. P. (1994) A new model for the visible emission of the CsI: Tl crystal. Chemical Physics Letters, 227 (4-5). pp. 533-538. ISSN 0009-2614

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Four emission bands, all belonging to the main thallium centre, are detected in a CsI:Tl crystal and their spectral, polarization and kinetic characteristics are studied at 1.7 to 320 K. Two weak ultraviolet bands (3.31 and 3.09 eV) are ascribed to electronic transitions from trigonal and tetragonal Jahn-Teller minima of the triplet relaxed excited state of Tl+. Two intense visible bands (2.55 and 2.25 eV) are assumed to arise from two different off-centre configurations of a self-trapped exciton perturbed by the Tl+ ion.

Item Type: Journal Article
Journal or Publication Title: Chemical Physics Letters
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Departments: Faculty of Science and Technology > Physics
ID Code: 23554
Deposited By: Dr Richard P. Haley
Deposited On: 03 Feb 2009 14:35
Refereed?: Yes
Published?: Published
Last Modified: 30 Sep 2019 14:43
URI: https://eprints.lancs.ac.uk/id/eprint/23554

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