Structure and luminescence properties of Bi3+-doped ZrSiO4 phosphors for near-UV excited white LEDs

被引：5
|
作者：
Wang, Ming [1 ]
Zhong, Zhiqiang [1 ]
Lin, Junhan [1 ]
Zhang, Rui [1 ]
机构：
[1] Guilin Univ Technol, Coll Mat Sci & Engn, Key Lab Nonferrous Mat & New Proc Technol, Guangxi Key Lab Opt & Elect Mat & Devices,Minist E, Guilin 541004, Peoples R China
来源：
MATERIALS LETTERS | 2022年 / 324卷
基金：
中国国家自然科学基金;
关键词：
Phosphors; White LEDs; COLOR; YELLOW; ZIRCON;
D O I：
10.1016/j.matlet.2022.132750
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZrSiO4:Bi3+ phosphors were synthesized by conventional high-temperature solid-phase method. The structural and optical behaviors were investigated by X-ray diffraction, scanning electron microscope, X-ray photoelectron spectroscopy and photoluminescence spectra. Bi2O3 contributes to the ZrSiO4 phase generation from liquid phase sintering. The ZrSiO4:Bi3+ shows a broad emission band centered at 548 nm when excited at 361 nm. The Bi3+ doping concentration is optimized to be 4 mol%, and the luminescence intensity of ZrSiO4:0.04Bi3+ at 150 degrees C keeps 84% of that at room temperature. The results indicate that the ZrSiO4:Bi3+ phosphors offer more possibilities in the near-UV excited white LED applications.
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页数：3
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