Luminescence properties of green-emitting phosphor (Ba1-x, Srx)2SiO4 :Eu2+ for white LEDS

被引：23

作者：

Liu, HL ^{[1
]}

He, DW ^{[1
]}

Shen, F ^{[1
]}

机构：

[1] Jiao Tong Univ, Inst Photoelectron Technol, Lab Mat Informat Storage & Display, Minist Educ Key Lab, Beijing 100044, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2006年 / 24卷 / 01期

关键词：

phosphor silicate; luminescence; rare earths;

D O I：

10.1016/S1002-0721(06)60077-X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The (Ba1-xSrx)(2)SiO4: Eu2+ green-emitting phosphors were synthesized by conventional solid-state reaction in a CO-reductive atmosphere, and their luminescent properties were investigated. The XRD data show that the Ba/Sr ratio not only affects the lattice parameters, but also influences the emission peak. The excitation spectra indicate that this phosphor can be effectively excited by UV light from 370 to 470 nm. The emission hand is due to the 4f(6)5d(1)-4f(7) transition of the Eu2+ ion. With an increase in x, the emission hand shifts to longer wavelength and the reason was discussed. The emission spectra exhibit a satisfactory green performance under different. excitation wavelength (380, 398, 412, 420, 460 nm). (Ba1-x Sr-x)(2)SiO4: Eu2+ is a promising phosphor for green white-lighting-emission diode by ultraviolet chip.

引用

页码：121 / 124

页数：4

共 7 条

[1] STRUCTURES OF TWINNED BETA-SR2SIO4 AND OF ALPHA'-SR1.9BA0.1SIO4 [J].