文献类型：期刊文献

英文题名：Synergistic Enhancement of Room-Temperature Phosphorescence through Metal Coordination and Structural Confinement

作者：Abdalla Ibrahim Mohamed, Eshtiag[1,2];Liang, Li Ya[1];Wu, Da Jun[1];Chen, Jia-Yi[1];Gao, Yating[1];Li, Da-Wei[1];Chen, Bin Bin[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn,Feringa Nobel Prize Scientist, Frontiers Sci Ctr Materiobiol & Dynam Chem, Key Lab Adv Mat,Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]Univ Bahri, Coll Appl & Ind Sci, Dept Chem & Ind Chem, Khartoum 1660, Sudan

年份：2025

卷号：3

期号：12

起止页码：2893

外文期刊名：ACS APPLIED OPTICAL MATERIALS

收录：WOS:【ESCI(收录号:WOS:001623179100001)】；

基金：The authors appreciate the financial support from the National Natural Science Foundation of China (22176058, 22504037, and 22574050), the Science and Technology Commission of Shanghai Municipality (24DX1400200, 23ZR1416100, and 25ZR1401082), the Program of Introducing Talents of Discipline to Universities (B16017), and the Fundamental Research Funds for the Central Universities (222201717003). We thank the Research Center of Analysis and Test of East China University of Science and Technology for their help on characterizations.

语种：英文

外文关键词：room-temperature phosphorescence; metal coordination; structural confinement; information encryption; inorganic salt recrystallization

摘要：Room-temperature phosphorescence (RTP) materials have garnered significant attention due to their remarkable photophysical properties. Achieving ultralong-lived, efficient, and stable RTP emission is of great importance. Herein, we have synthesized micrometer-sized scandium/methionine phosphorescent materials (Sc/Met-PMs) via hydrothermal polymerization, which exhibit excitation-dependent green phosphorescence (phos.) emission at 500 nm. After coordination with Sc3+ ions to form Sc/Met-PMs, the phosphorescent efficiency of Met ligands is significantly enhanced, manifesting as a 13.33-times increase in phos. intensity. Meanwhile, sodium fluoride (NaF)-treated Sc/Met-PMs (NaF@Sc/Met-PMs) can further enhance phos. efficiency of Sc/Met-PMs through structural confinement, demonstrating a 1.12-fold increase in emission intensity and a 1.57-fold extension in lifetime. With their unique optical properties, Sc/Met-PMs demonstrate promising potential for advanced information encryption. This study not only develops high-performance RTP materials but also provides fundamental insights into RTP mechanisms.