Ultra-broadband near-infrared phosphor Li3Sc2(PO4)3:Cr3+ realized by two-sites occupation

被引：32

作者：

Zhao, Shuang ^{[1
]}

Lou, Lulu ^{[1
]}

Yuan, Shuwen ^{[1
]}

Zhu, Daoyun ^{[3
]}

Wu, Fugen ^{[1
,2
]}

Mu, Zhongfei ^{[1
,2
,3
]}

机构：

[1] Guangdong Univ Technol, Sch Mat & Energy, Waihuan Xi Rd 100, Guangzhou 510006, Peoples R China

[2] Guangdong Univ Technol, Guangdong Prov Key Lab Informat Photon Technol, Waihuan Xi Rd 100, Guangzhou 510006, Peoples R China

[3] Guangdong Univ Technol, Expt Teaching Dept, Waihuan Xi Rd 100, Guangzhou 510006, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2022年 / 251卷

基金：

中国国家自然科学基金;

关键词：

Li3Sc1.92(PO4)(3):0.08Cr(3+); Near-infrared phosphor; Ultra-broad band; LIGHT-SOURCES; LUMINESCENCE; EMISSION; EFFICIENT;

D O I：

10.1016/j.jlumin.2022.119188

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The near-infrared phosphor converted light-emitting diodes (NIR pc-LEDs) have been broadly used in the fields of night vision, biomedicine, nondestructive testing and food analysis. Over the past few years, many Cr3+ doped NIR phosphorus has been reported. However, the realization of ultra-broad band NIR emission with high quantum efficiency remains a great challenge. Here, we report an ultra-broad band NIR emitting phosphor Li3Sc1.92(PO4)(3):0.08Cr(3+) with a full width at half maximum (FWHM) of 240 nm. The reason for the ultra-broad emission band is that the host Li3Sc2(PO4)(3) provides two different kinds of ScO6 octahedral sites for Cr3+ ions to occupy. This FWHM is better than most NIR emitting phosphors reported so far. Our research indicates that Li3Sc2(PO4)(3):Cr3+ phosphors have great potential in night vision and NIR spectroscopy.

引用

页数：8

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