Charge compensation and its influences on luminescent properties of red-emitting Ca3(PO4)2:Eu3+ phosphor

被引：9

作者：

Zhang, Zhan Hui ^{[1
]}

Chen, Li ^{[1
]}

Da, Jiang Nan ^{[1
]}

Guo, De Xing ^{[3
]}

Cai, Ke Qin ^{[3
]}

Chi, Ru An ^{[2
]}

Huang, Zhi Liang ^{[1
]}

机构：

[1] Wuhan Inst Technol, Sch Mat Sci & Engn, Wuhan 430073, Peoples R China

[2] Wuhan Inst Technol, Sch Chem Engn & Pharm, Wuhan 430073, Peoples R China

[3] Foshan Red Lion Ceram Co Ltd, Dev Ctr New Prod, Foshan 528031, Peoples R China

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2012年 / 209卷 / 12期

关键词：

charge compensation; defects; luminescence; phosphors; EU3+; PHOTOLUMINESCENCE;

D O I：

10.1002/pssa.201228267

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we report the obtention of red-emitting Ca-3(PO4)(2):Eu3+ phosphor by the solid-state reaction method. X-ray diffraction and photoluminescence (PL) measurements were used to investigate the crystal phases, luminescent properties, and optimal Eu3+ doping concentration. To further improve the PL intensity, Na+ acting as a charge compensator was incorporated into the phosphor. The effects of Na+ concentration on the PL properties were studied. It was found that the charge-compensation phosphor showed greatly enhanced red emission beyond the phosphor without charge compensation. Ca2.3Na0.4(PO4)(2):0.3Eu(3+) was determined to be the best composition. The charge-compensation mechanism was analyzed in light of the principles on defect formation and reaction, and the changes of the site centrosymmetry for the activator.

引用

页码：2574 / 2577

页数：4

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