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Luminescence Parameters of PBX2 (X=F, CI, Br, I) Crystals

Published online by Cambridge University Press:  21 February 2011

A. S. Voloshnovskii ,
M.S. Pidzyrailo ,
V.B. Mikhallik  and
P.A. Rodnyi
A. S. Voloshnovskii
Affiliation:
Physics Department, Lviv State University, Lomonosov st. 8, Lviv, 290005, Ukraine
M.S. Pidzyrailo
Affiliation:
Physics Department, Lviv State University, Lomonosov st. 8, Lviv, 290005, Ukraine
V.B. Mikhallik
Affiliation:
Physics Department, Lviv State University, Lomonosov st. 8, Lviv, 290005, Ukraine
P.A. Rodnyi
Affiliation:
Department of Experimental Physics, State Technical University Politekhnicheskaya st., 29, St.Petersburg, 195251, Russia
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Abstract

Spectral and kinetic parameters of PbX2 (X=F, Cl, Br, I) crystals emission are investigated under pulse photo- (∆t=l.0 ns) and X-ray (∆t=l.5 ns) excitation in the temperature region from 77 to 293 K. X-ray luminescence of the PbF2, PbC12 and PbBr2 crystals is considered as radiative decay of the self-trapped excitons at the defects, while subnanosecund and nanosecond emission components are regarded to the result of the thermal quenching. The nature of the fast X-ray luminescence for PbI2 crystals is discussed from the viewpoint of the possibility for observation of radiative core-valence transition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 348 , 1994 , 149
Copyright
Copyright © Materials Research Society 1994

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References

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