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Proceedings Paper

Defect site quenching of the 5D0 excited state of Eu3+ in the hexachloroelpasolite Cs2NaEuCl6
Author(s): Matthew R. Duckett; Colin D. Flint
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Paper Abstract

The luminescence decay curves of the 5D0 excited state of the cubic hexachloroelpasolite Cs2NaEuCl6 have been measured at 80 and 295 K for samples prepared by several methods. The decay curves are non-exponential and the rate of decay depends on the method of preparation. This is attributed to energy migration between the majority sites followed by energy transfer to defect sites associated with the presence of oxide ions in the lattice. A new method of preparation is devised which minimizes the concentration of oxide and other impurities. Crystals prepared by this method have lifetimes that are several times longer than that prepared by the standard procedure.

Paper Details

Date Published: 1 November 1997
PDF: 6 pages
Proc. SPIE 3176, Tunable Solid State Lasers, (1 November 1997); doi: 10.1117/12.293433
Show Author Affiliations
Matthew R. Duckett, Univ. of London (United Kingdom)
Colin D. Flint, Univ. of London (United Kingdom)


Published in SPIE Proceedings Vol. 3176:
Tunable Solid State Lasers
Wieslaw Strek; Edward Lukowiak; Barbara Nissen-Sobocinska, Editor(s)

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