Indirect energy transfer of Ce3+->Eu2+ in CaAl12O19 phosphor

被引：28

作者：

Jeon, HS

Kim, SK

Kim, SC

Park, SH

Park, HL

Mho, SI

机构：

[1] YONSEI UNIV,DEPT PHYS,SEOUL 120749,SOUTH KOREA

[2] EWHA WOMANS UNIV,DEPT PHYS,SEOUL 120750,SOUTH KOREA

[3] AJOU UNIV,DEPT CHEM,SUWON 442749,SOUTH KOREA

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 102卷 / 07期

关键词：

D O I：

10.1016/S0038-1098(97)00036-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Photoluminescence characteristics and the energy transfer between Ce3+ and Eu2+ in CaAl12O19 host lattice have been investigated. A series of concentrations of Ce3+ ion with a fixed Eu2+ concentration in doubly doped CaAl12O19 : Ce3+Eu2+ have been studied. The indirect energy transfer has been observed between Ce3+ and Eu2+ through the Ce3+-O-Me complex in CaAl12O19 host lattice. The two nonradiative relaxation processes from the excited levels of Ce3+-O-Me complex; one, to the lower emitting level of Ce3+-O-Me complex themselves and the other, to the Eu2+ site are competing processes.

引用

页码：555 / 559

页数：5

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CALDINO GV, 1990, SOLID STATE COMMUN, V69, P347

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