Highly efficient Fe^(3+)-doped A_(2)BB′O_(6)(A=Sr^(2+),Ca^(2+);B,B′=In^(3+),Sb^(5+),Sn^(4+))broadband nearinfrared-emitting phosphors for spectroscopic analysis  

作　　者：Dongjie Liu Guogang Li Peipei Dang Qianqian Zhang Yi Wei Lei Qiu Maxim S.Molokeev Hongzhou Lian Mengmeng Shang Jun Lin 

机构地区：[1]State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,130022 Changchun,China [2]University of Science and Technology of China,230026 Hefei,China [3]Faculty of Materials Science and Chemistry,China University of Geosciences,430074 Wuhan,China [4]Zhejiang Institute,China University of Geosciences,311305 Hangzhou,China [5]Laboratory of Crystal Physics,Kirensky Institute of Physics,Federal Research Center KSC SB RAS,Krasnoyarsk 660036,Russia [6]Institute of Engineering Physics and Radioelectronics,Siberian Federal University,Krasnoyarsk 660041,Russia [7]Research and Development Department,Kemerovo State University,Kemerovo 650000,Russia [8]School of Material Science and Engineering,Shandong University,266071 Jinan,China

出　　处：《Light(Science & Applications)》2022年第5期969-978,共10页光（科学与应用)（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(NSFC Nos.51720105015,51932009,51929201,52072349);the Projects for Science and Technology Development Plan of Jilin Province(20210402046GH);the Natural Science Foundation of Zhejiang Province(LR22E020004).

摘　　要：Near-infrared(NIR)-emitting phosphor-converted light-emitting diodes have attracted widespread attention in various applications based on NIR spectroscopy.Except for typical Cr^(3+)-activated NIR-emitting phosphors,next-generation Cr^(3+)-free NIR-emitting phosphors with high efficiency and tunable optical properties are highly desired to enrich the types of NIR luminescent materials for different application fields.Here,we report the Fe^(3+)-activated Sr2−yCay(InSb)1−zSn_(2)zO_(6)phosphors that exhibit unprecedented long-wavelength NIR emission.The overall emission tuning from 885 to 1005 nm with broadened full-width at half maximum from 108 to 146 nm was realized through a crystallographic site engineering strategy.The NIR emission was significantly enhanced after complete Ca^(2+)incorporation owing to the substitution-induced lower symmetry of the Fe^(3+)sites.The Ca_(2)InSbO_(6):Fe^(3+)phosphor peaking at 935 nm showed an ultra-high internal quantum efficiency of 87%.The as-synthesized emission-tunable phosphors demonstrated great potential for NIR spectroscopy detection.This work initiates the development of efficient Fe^(3+)-activated broadband NIR-emitting phosphors and opens up a new avenue for designing NIR-emitting phosphor materials.

关 键 词：spectroscopy materials SPECTROSCOPIC 

分 类 号：O43[机械工程—光学工程]