Energy transfer with migration.: Generalization of the Yokota-Tanimoto model for any kind of multipole interaction

被引:89
作者
Martín, IR [1 ]
Rodríguez, VD
Rodríguez-Mendoza, UR
Lavín, V
Montoya, E
Jaque, D
机构
[1] Univ La Laguna, Dept Fis Fundamental & Expt, La Laguna 38206, Tenerife, Spain
[2] Univ Autonoma Madrid, Dept Fis Mat, Madrid 28049, Spain
关键词
D O I
10.1063/1.479304
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The dynamics of luminescence decay is analyzed within the general scenario of randomly distributed ions with whatever multipole interaction, taking into account energy transfer and migration processes among them. By applying Pade approximants to the Allinger and Blumen expression for the excited state population, a simple expression has been obtained which can be easily fitted to experimental data. This expression can be considered a generalization of the dipole-dipole Yokota-Tanimoto equation. On the other hand, the decay curves from the D-5(3) level of the Tb3+ ions in fluorozincate glasses have been measured for different Tb3+ concentrations. The results are analyzed in the framework of the proposed expression. (C) 1999 American Institute of Physics. [S0021-9606(99)70927-X].
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页码:1191 / 1194
页数:4
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