A promising orange-red phosphor under near UV excitation

被引：109

作者：

Sivakumar, V

Varadaraju, UV ^{[1
]}

机构：

[1] Indian Inst Technol, Mat Sci Res Ctr, Madras 600036, Tamil Nadu, India

[2] Indian Inst Technol, Dept Chem, Madras 600036, Tamil Nadu, India

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2006年 / 9卷 / 06期

关键词：

D O I：

10.1149/1.2189155

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Investigation of photoluminescence of Eu3+-doped double perovskites with the formula A(2)CaMoO(6) (A=Sr, Ba) revealed that the electric dipole transition is present when Eu3+ is doped at the noncentrosymmetric Sr site vis-a-vis substitution at the centrosymmetric Ca site. Strong CT band absorption was observed in both series of compounds in the near ultraviolet region. Commission Internationale de I'Eclairage chromaticity coordinates indicate that Eu3+-doped Sr2CaMoO6 compounds are potential orange-red emitting phosphors, whose emission intensity is 1.5 times that of commercial Y2O2S:Eu phosphor for white LEDs based on NUV GaN based LEDs.

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收藏

页码：H35 / H38

页数：4

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