Broadbandnear-infraredluminescenceandenergytransferofCr3+,Ce3+co-dopedCa2LuHf2Al3O12phosphors

被引：3

作者：

Jinpin Wu ^{[1
,2
,3
]}

Weidong Zhuang ^{[1
,2
,3
]}

Ronghui Liu ^{[1
,2
,3
]}

Yuanhong Liu ^{[1
,2
,3
]}

Tongyu Gao ^{[1
,2
,3
]}

Chunpei Yan ^{[4
]}

Min Cao ^{[1
,2
,3
]}

Junhang Tian ^{[1
,2
,3
]}

Xiaoxia Chen ^{[1
,2
,3
]}

机构：

[1] National Engineering Research Center for Rare Earth Materials,GRINM Group Co,Ltd

[2] GRIREM Advanced Materials Co,Ltd

[3] General Research Institute for Nonferrous Metals

[4] Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices,School of Chemistry,Biology and Materials Science,East China University of Technology

来源：

Journal of Rare Earths | 2021年 / 39卷 / 03期

关键词：

D O I：

暂无

中图分类号：

TQ422 [光化学物质];

学科分类号：

0817 ;

摘要：

Broadband near-infrared phosphors are highly desirable for food testing.Targeted Ca2 LuHf2 Al3 O12:Cr3+(CLHA:Cr3+) and Ca2 LuHP2 Al3 O12:Ce3+,Cr3+(CLHA:Ce3+,Cr3+) phosphors were synthesized by the conventional high-temperature solid state reaction.The CLHA:Cr3+phosphor,with a good thermal stability,shows a red shift owing to radiation reabsorption and non-radiative transition with increasing Cr3+content.For co-doped sample,the emission intensity of Cr3+can be enhanced by three times due to the energy transfer from Ce3+to Cr3+,which can be evidenced by a significant overlap between the PLE of Cr3+single-doped phosphor and the PL of Ce3+single-doped phosphor.In addition,the mechanism of energy transfer is identified as a quadrupole-quadrupole interaction according to decay Lifetime and Dexter's energy transfer formula.The broadband NIR emission peaked at 775 nm of CLHA:Cr3+,Ce3+phosphor shows a bright prospect in nondestructive quality-control analysis systems for food.

引用

页码：269 / 276

页数：8