Cooperative quenching: experiment, theory and Monte-Carlo computer simulation

被引：21

作者：

Basiev, TT ^{[1
]}

Basieva, IT ^{[1
]}

Doroshenko, ME ^{[1
]}

Osiko, VV ^{[1
]}

Prokhorov, AM ^{[1
]}

Pukhov, KK ^{[1
]}

机构：

[1] Res Ctr Gen Phys Inst, Moscow 119991, Russia

来源：

JOURNAL OF LUMINESCENCE | 2001年 / 94卷

关键词：

cooperative quenching; energy transfer; computer simulation;

D O I：

10.1016/S0022-2313(01)00399-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An analytical expression and results of Monte-Carlo computer simulations are proposed for the kinetics of cooperative static quenching decay in crystals with arbitrary acceptor concentration and arbitrary multipolarity of interaction process S = 6, 8, 10, which at a long decay time can be approximated by the nonexponential law I(t)exp[-(wt)(k)], where k = 0.41, 0.3, 0.25 for multipolarities S = 6, 8 10, respectively. The phenomenon of cooperative energy transfer from single Nd3+, Tm3+ or Ho3+ ion simultaneously to the pair of Ce3+ ions and from single Er3+ ion to three Ce3+ ions with, respectively, two and three times smaller transition energy each in highly concentrated La1-xCexF3 crystals is presented. The influence of overlap integral (between donor ion and cooperative pair and triple Ce3+ acceptor) and electronic matrix elements of donor transitions on the cooperative energy transfer rate for a set of donor ions is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：349 / 354

页数：6

共 14 条

[1] Cooperative nonradiative cross-relaxation in crystals of La(1-x)CexF3 solid solutions [J].