Charge transfer luminescence of Yb3+ in orthophosphates

被引：43

作者：

van Pieterson, L ^{[1
]}

Meijerink, A ^{[1
]}

机构：

[1] Univ Utrecht, Debye Inst, NL-3508 TA Utrecht, Netherlands

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2000年 / 300卷

关键词：

charge transfer; luminescence; Yb3+;

D O I：

10.1016/S0925-8388(99)00756-2

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：

Charge transfer luminescence of Yb3+ in the orthophosphates REPO4 (RE=Sc, Lu, Y, La) has been investigated. Yb3+ shows charge transfer luminescence in the orthophosphates of cations with a relative small radius (Sc, Lu, Y). In LaPO4, no proof for Yb3+ charge transfer luminescence has been found. The decay time of the charge transfer luminescence is about 150 ns in the three orthophosphates. The quenching temperature is around 250 K and is compared with the quenching temperature of Eu3+ luminescence in the orthophosphates after excitation in the charge transfer state. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：426 / 429

页数：4

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