文献类型：期刊文献

英文题名：Full-color programmable high temperature afterglow polymers based on single-molecule emitters

作者：Xu, Zhuoran[1,2];Huang, Yufeng[1,2];Sun, Siyu[1,2];Ma, Liangwei[1,2];Ding, Bingbing[1,2];Tian, He[1,2];Ma, Xiang[1,2]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn, Shanghai, Peoples R China

年份：2025

卷号：16

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001608119800014)】；

基金：This work was supported by the National Natural Science Foundation of China (22125803, T2488302, and 22020102006 to X.M.), the Science and Technology Commission of Shanghai Municipality (grant No. 24DX1400200 to X.M.), the Postdoctoral Fellowship Program of CPSF (GZB20240220 to S.S.), the Natural Science Foundation of Shanghai (25ZR1402108 to S.S.), and the Fundamental Research Funds for the Central Universities. We thank Y.H. Sun for helpful discussions.

语种：英文

摘要：High-temperature afterglow organic amorphous materials expand the operational temperature beyond traditional room-temperature phosphorescent materials, broadening their potential applications. However, achieving tunable high-temperature afterglow from a single luminescent molecule remains a formidable challenge. Here, we employ host-guest anchoring coupled with single-bond rotors to achieve effective phosphorescence and tunable afterglow at high temperature simultaneously. The material demonstrates a wavelength-tunable afterglow: during heating (298 K to 473 K), the chromaticity coordinate shifts from (0.24, 0.47) to (0.18, 0.20) and the lifetime from 836 ms to 6.34 ms. The theoretical investigations reveal that the excited-state conformation of phosphors undergoes a temperature-dependent transformation, inducing the wavelength-tunable high-temperature afterglow phenomenon. This work offers a strategy for designing tunable high-temperature afterglow-emitting amorphous polymers, advancing the development of organic phosphorescent materials capable of delivering tunable high-temperature afterglow emissions.