Host-to-activator energy transfer in a new blue-emitting phosphor SrHfO3 : Tm3+

被引：59

作者：

Yamamoto, H

Mikami, M

Shimomura, Y

Oguri, Y

机构：

[1] Tokyo Univ Technol, Fac Engn, Hachioji, Tokyo 1920982, Japan

[2] Mitsubishi Chem Corp, Yokohama Res Ctr, Aoba Ku, Yokohama, Kanagawa 2278502, Japan

[3] Kasei Optonix Ltd, Phosphor R&D Dept, Odawara 2500862, Japan

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

SrHfO3 : Tm3+; charge transfer state; efficiency;

D O I：

10.1016/S0022-2313(99)00546-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new phosphor, SrHfO3:Tm3+, shows a blue luminescence of high color purity with a peak at 457 nm originated from P-3(0) state. Below the fundamental absorption edge at around 200 nm, an excitation band presumably due to a charge transfer state (CTS) of Tm3+ is observed. This situation allows efficient energy transfer from the host to Tm3+ via the CTS, providing a relatively high-energy efficiency of Tm3+ luminescence in oxides, which is about 4% under 25 kV electron-beam excitation. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1079 / 1082

页数：4

共 5 条

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