Enhanced photoluminescence of Sr3SiO5:Ce3+ and tuneable yellow emission of Sr3SiO5:Ce3+,Eu2+ by Al3+ charge compensation for W-LEDs

被引：67

作者：

Luo, Hongde ^{[1
]}

Liu, Jie ^{[1
]}

Zheng, Xiao ^{[1
]}

Han, Lixian ^{[1
]}

Ren, Kuaixia ^{[1
]}

Yu, Xibin ^{[1
]}

机构：

[1] Shanghai Normal Univ, Dept Chem, Shanghai 200234, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 31期

关键词：

LIGHT-EMITTING-DIODES; ENERGY-TRANSFER MECHANISM; PHOSPHORS; LUMINESCENCE; CE3+; CHEMISTRY; LI+;

D O I：

10.1039/c2jm32293e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Trivalent ions B3+, Al3+ and Ga3+ have been introduced into Sr3SiO5:Ce3+ in this study. Among these ions, Al3+ and Ga3+ act as charge compensators and significantly enhance the maximum emission of Ce3+ by about 100% and 90%, respectively. Then, Al3+, Eu2+ co-doped Sr3SiO5:Ce3+ phosphors have been researched, which indicate that the emission spectra can be tuned from 530 to 575 nm by changing the concentration of Eu2+. The CIE chromaticity coordinates of the phosphors were calculated from (0.342, 0.518) to (0.442, 0.479). This indicates a potential for applications in daylight LEDs or warm-white LEDs.

引用

页码：15887 / 15893

页数：7

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