A novel Li2CaSi2N4:Eu2+ orange-red phosphor for field-emission displays

被引：7

作者：

Wu, Quansheng ^{[1
,2
]}

He, Ziyu ^{[1
]}

Zhang, Hanqiang ^{[1
]}

Chen, Hande ^{[3
]}

Zhou, Jiangcong ^{[1
,2
]}

Xiong, Jinhua ^{[1
,2
]}

Hu, Zhibiao ^{[1
,2
]}

机构：

[1] Longyan Univ, Coll Chem & Mat Sci, Longyan, Peoples R China

[2] Longyan Univ, Coll Chem & Mat Sci, Fujian Prov Key Lab Clean Energy Mat, Longyan, Peoples R China

[3] Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou, Fujian, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2019年 / 102卷 / 06期

基金：

中国国家自然科学基金;

关键词：

cathodoluminescence; FED; Li2CaSi2N4:Eu2+; phosphor; LOW-VOLTAGE CATHODOLUMINESCENCE; SILICON; PHOTOLUMINESCENCE; OXYNITRIDE; LI2SRSIO4;

D O I：

10.1111/jace.16203

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The exploration of suitable phosphors with high efficiency, low saturation, and good stability has always been a key issue for field-emission displays (FEDs) development. In this work, a novel Li2CaSi2N4:Eu2+ orange-red phosphors were prepared by solid reaction process and the cathodoluminescence (CL) properties were investigated in detail to explore the potential application for FEDs. Under a low voltage electron-beam excitation, the phosphors show an intense orange-yellow emission in the range of 500-700 nm, which belongs to the 4f(6)5d4f(7) electron transition of Eu2+ ion. The influences of the Eu2+ doping concentration, filament current, accelerating voltage, and bombardment time on the CL emission of Li2CaSi2N4:Eu2+ were investigated in detail. The results indicate that Li2CaSi2N4:Eu2+ phosphors exhibit an intense orange-red emission, no saturation effect, and excellent degradation property, which give the Li2CaSi2N4:Eu2+ phosphors potential application in full color FEDs.

引用

页码：3517 / 3524

页数：8

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