Dy3+-doped LiYF4 crystals for UV-excited white light-emitting diodes

被引：9

作者：

Tang, Lei ^{[1
]}

Xia, Haiping ^{[1
]}

Wang, Peiyuan ^{[1
]}

Peng, Jiangtao ^{[1
]}

Jiang, Haochuan ^{[2
]}

机构：

[1] Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315211, Zhejiang, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2013年 / 11卷 / 06期

基金：

中国国家自然科学基金;

关键词：

LUMINESCENCE; PHOSPHOR; GLASSES; SR; BA;

D O I：

10.3788/COL201311.061603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A Dy3+-doped LiYF4 single crystal capable of generating white light by simultaneous blue and yellow light emission of phosphorescent centers is produced. Chromaticity coordinates and photoluminescence intensity vary with excitation wavelength. Under 350, 365, and 388 nm excitation, the crystal shows excellent white light emission. The most efficient wavelength for white light is 388 nm. The CIE coordinates are x=0.316 and y =0.321, and the color temperature (T-c) is 6 368 K. These results indicate that the studied crystal is a potential candidate for ultraviolet light-excited white light-emitting diodes.

引用

页数：4

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