Excitation energy transfer between two 2i sites in triclinic L-EuBO3 and L-GdBO3:EU3+

被引：9

作者：

Yin, M

Corbel, G

Leblanc, M

Antic-Fidancev, E

Krupa, JC

机构：

[1] Univ Paris, Inst Phys Nucl, Grp Radiochim, IN2P3,CNRS, F-91406 Orsay, France

[2] Univ Maine, UPRESA 6010, Lab Fluorures, F-72085 Le Mans 9, France

[3] ENSCP, UMR 7574, Lab Chim Appl Etat Solide, F-75231 Paris 05, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2000年 / 302卷 / 1-2期

关键词：

rare earth orthoborates; energy transfer; luminescence;

D O I：

10.1016/S0925-8388(99)00819-1

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：

Analysis of the excitation of Eu3+ ions in site A and site B in L-EuBO3 and L-GdBO3:Eu3+ at several temperatures have shown very efficient energy transfer and reciprocal processes between both sites. At 12 K, the transfer from site A to site B dominates the process and results in the fluorescence quenching of site A in L-EuBO3. At higher temperature, 77 and 300 K, the transfer and back transfer have nearly an equal rate and accordingly the same spectra from both sites are obtained despite of exciting site A or site B. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：12 / 15

页数：4