Full spectrum light-emitting diodes based on a new efficient zirconium silicate green phosphor for healthy lighting

被引：24
作者：
Ding, Jianyan [1 ]
Xu, Qixiang [1 ]
He, Jianzhuang [1 ]
Zhang, Weibin [1 ]
Zhou, Jiangcong [1 ]
Wu, Quansheng [1 ]
机构：
[1] Longyan Univ, Coll Chem Mat Sci, Longyan 364000, Fujian, Peoples R China
来源：
MATERIALS CHEMISTRY FRONTIERS | 2021年 / 5卷 / 19期
基金：
中国国家自然科学基金;
关键词：
EMISSION; EU2+; 4F(N-1)5D-LEVELS; BARIUM; CE3+;
D O I：
10.1039/d1qm00991e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Full spectrum LEDs have been a research focus in the field of LED technology in recent years. In this study, a novel rubidium-containing zirconium silicate green phosphor, Rb2ZrSi2O7:Eu2+, with excellent thermal stability and high quantum efficiency was successfully synthesized via a high temperature solid phase method. The Rb2ZrSi2O7:Eu2+ phosphor can be effectively excited by near ultraviolet light, emitting intense green light peaking at 522 nm. The broadband green light emission with a FWHM of 91 nm was confirmed to originate from luminescent centers formed by Eu2+ occupying two different Rb+ sites. The color rendering properties of LED beads encapsulated by Rb2ZrSi2O7:Eu2+ are better than those of LED beads encapsulated by beta-sialon:Eu2+, and these LEDs can basically meet the requirements for full-spectrum LEDs. The results indicate that Rb2ZrSi2O7:Eu2+ is a potential green phosphor for full spectrum LEDs.
引用
收藏
页码：7251 / 7258
页数：8
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