Anti-thermal quenching upconversion luminescence of Cr^(3+) in Sc_(2)(WO_(4))_(3):Yb/Cr  

作　　者：Yang Wei Shuaihao Wu Ran Chen Chao Sun Feng Wang Xinru Ding Hui Wang Yanqing Lu Ling Huang 

机构地区：[1]School of Chemistry and Molecular Engineering,Nanjing Tech University,Nanjing 211816,China [2]State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources,College of Chemistry,Xinjiang University,Urumqi 830017,China [3]College of Engineering and Applied Sciences,Nanjing University,Nanjing 210023,China

出　　处：《Nano Research》2025年第2期411-417,共7页纳米研究(英文版)

基　　金：This work was supported by the National Key Research and Development Program of China(No.2022YFA1405000);the National Natural Science Foundation of China(No.21871137);the Basic Research Program of Jiangsu Province(No.BK20232040);the China Postdoctoral Science Foundation(No.2024M751381);China National Postdoctoral Program for Innovative Talents(No.BX20240163);Jiangsu Funding Program for Excellent Postdoctoral Talent(No.2024ZB861);the Natural Science Foundation of Jiangsu Province(No.BK20243067).

摘　　要：Although widely need from various applications,the luminescence of Cr^(3+)is easily prone to thermal quenching(TQ),causing remarkable intensity reduction as temperature rises,and posing a significant constraint in applications such as high-power lighting,solid state lasers,and high-temperature optical sensing.Numerous strategies have been reported to realize anti thermal quenching luminescence(ATQL)of Cr^(3+).However,researches into anti-thermal quenching upconversion luminescence(ATQUL)of Cr^(3+)are barely seen.Herein,taking advantage of the enhanced luminescence of Yb^(3+)facilitated by the Frenkel defects formed within Sc_(2)(WO_(4))_(3)(SWO)matrix upon heating,we have established Yb^(3+)→Cr^(3+)cooperative sensitization pathway for upconversion luminescence of Cr^(3+),and achieved ATQUL of Cr3+in SWO:Yb/Cr.Our findings have not only offered novel perspectives for medium to high-temperature applications of Cr^(3+)-based phosphors,the design principles are also extendable to other transition metal ions.

关 键 词：Cr^(3+) Sc_(2)(WO_(4))_(3) anti-thermal quenching upconversion luminescence luminescence thermometry 

分 类 号：O61[理学—无机化学]