The role of Pb2+ as a sensitizer for Gd3+-EU3+ downconversion couple in fluorides

被引：33

作者：

Babin, V ^{[1
]}

Oskam, KD ^{[1
]}

Vergeer, P ^{[1
]}

Meijerink, A ^{[1
]}

机构：

[1] Univ Utrecht, Debye Inst, NL-3584 CC Utrecht, Netherlands

来源：

RADIATION MEASUREMENTS | 2004年 / 38卷 / 4-6期

关键词：

luminescence; downconversion; sensitizer; fluorides;

D O I：

10.1016/j.radmeas.2003.12.015

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Spectroscopic properties of Pb2+ in different fluoride host lattices were studied in order to investigate if Pb2+ can serve as a sensitizer for the Gd3+-Eu3+ quantum cutting system. Strong B' emission of Pb2+ was found in several fluoride host lattices and for the first time B' emission is reported at room temperature. It is shown that sensitization of the (6)G levels of Gd3+ is possible via B' emission of Pb2+ in the host lattice (BaF2)(0.6)(GdF3)(0.4) and visible quantum cutting with an efficiency of 20% is observed upon excitation in the C band of Pb2+. The possibility of sensitization of Gd3+ by A' emission of Pb2+ in KMgF3 is discussed. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：767 / 770

页数：4

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