Thermally stimulated luminescence mechanism of Li6Y(BO3)3:Eu3+ single crystals

被引：0
|
作者：
Yavetskiy, R.P. [1 ]
Tolmachev, A.V. [1 ]
Dolzhenkova, E.F. [1 ]
Baumer, V.N. [1 ]
机构：
[1] Scientific and Technological Complex Institute for Single Crystals, NAS of Ukraine, 60 Lenin Ave., 61001 Kharkov, Ukraine
来源：
Journal of Alloys and Compounds | 1600年 / 429卷 / 1-2期
关键词：
Thermally stimulated luminescence (TSL) of Li6Y(BO3)3:Eu3+ single crystals has been studied. Radiation-induced absorption of the Li6Y(BO3)3:Eu3+ crystals in the 320-500 nm region has been attributed to the formation of hole oxygen centers. Three peaks on the TSL curve in the T = 325-525 K range has been ascribed to decay of the radiation defects; which occupy non-equivalent crystallographic positions. The activation energy and frequency factor of the main TSL peak at T = 488 K has been determined: E = 1.25 eV; and s0 = 1.9 × 1011 s-1; respectively. It has been shown that TSL spectral composition corresponds to Eu3+ ions emission. Possible position of localization of radiation defects in Li6Y(BO3)3:Eu3+ crystals has been proposed on the base of crystal structure analysis. © 2006 Elsevier B.V. All rights reserved;
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页码：77 / 81
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