文献类型：期刊文献

英文题名：Se/S enhanced room-temperature phosphorescence of organic polymers

作者：Li, Zitong[1];Ding, Bingbing[1];Liu, Xiaoqin[2];Sun, Linbing[2];Ma, Xiang[1]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Key Lab Adv Mat & Feringa Nobel Prize Scientist J, Sch Chem & Mol Engn,Inst Fine Chem, Meilong Rd 130, Shanghai 200237, Peoples R China;[2]Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Peoples R China

年份：2021

卷号：195

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20213110712013);WOS:【SCI-EXPANDED(收录号:WOS:000693246200005)】；

基金：We gratefully acknowledge the financial support from the National Natural Science Foundation of China (21788102, 2212500537, 22020102006 and 21871083), project support by the Shanghai Municipal Science and Technology Major Project (Grant No.2018SHZDZX03), Program of Shanghai Academic/Technology Research Leader (20XD1421300), `Shu Guang' project supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation (19SG26), the Innovation Program of Shanghai Municipal Education Commission (2017-01-07-00-02-E00010), Opening Project of State Key Laboratory of Materials-Oriented Chemical Engineering (KL19-10), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Aqueous room-temperature phosphorescence; Amorphous room-temperature phosphores-cence; Phosphorescence enhancement

摘要：Room-temperature phosphorescence (RTP) materials have drawn widespread attention due to its unique property and extensive application, which makes finding effective ways to improve luminescence performance of RTP materials an urgent thing. We have prepared a series of polymers containing S/Se-naphthalimide derivatives that not only showed decent RTP properties in solid state, but also achieved RTP in aqueous solution. The heavy-atom effect of Se and hetero-atom effect of S can facilitate the spin-forbidden transfer of singlet-to-triplet excited states through intersystem crossing to populate triplet state thereby enhancing the RTP. The hydrogen-bonded cross linking network of polymer systems endow the phosphorescence the good oxygen barrier property in both solid and aqueous states. This RTP-enhancing concept can lay a good foundation for the subsequent development of RTP materials with better performance.