Effects of Sm3+ Doping on the Photoluminescence Properties of Ca9Eu1-xSmx(VO4)7 Red-Emitting Phosphors

被引：2

作者：

Liu, Lihong ^{[1
,2
]}

Xie, Rong-jun ^{[2
]}

Sun, Xudong ^{[3
]}

Huang, Qing ^{[1
]}

Hirosaki, Naoto ^{[2
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Div Funct Mat & Nanodevices, Struct & Funct Integrat Ceram Grp, Ningbo 315201, Zhejiang, Peoples R China

[2] Natl Inst Mat Sci, Sialon Unit, Sialon Grp, Tsukuba, Ibaraki 3050044, Japan

[3] Northeastern Univ, Sch Mat & Met, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110004, Liaoning, Peoples R China

来源：

HIGH-PERFORMANCE CERAMICS VII, PTS 1 AND 2 | 2012年 / 512-515卷

基金：

中国国家自然科学基金;

关键词：

Vanadate; Red-emitting; Sensitizer; Phosphor; LUMINESCENCE PROPERTIES; ENERGY-TRANSFER; EU3+;

D O I：

10.4028/www.scientific.net/KEM.512-515.1488

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper reports the photoluminescence properties of Ca9Eu1-xSmx(VO4)(7) (x=0.2-0.4) synthesized at 1250 degrees C in air for 12 h using traditional solid-state reaction method. With the increase of Sm3+ substitution amount, purity Ca9Eu1-xSmx(VO4)(7) phase was obtained even when Eu3+ were totally substituted by Sm3+. The experimental results showed that when Sm3+ was codoped with Eu3+ into Ca9Eu1-xSmx(VO4)(7) crystal structure, Sm3+ would act as a sensitizer and transfer the excitation energy to Eu3+ and finally enhance the emission intensity of Ca9Eu1-xSmx(VO4)(7) under 405 nm excitation, which leads to more favorite of this kind of phosphor used in UV LED based white LEDs.

引用

页码：1488 / +

页数：3

共 18 条

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