文献类型：期刊文献

英文题名：Harmonizing High Phosphorescence Efficiency and Stretchability in Flexible Afterglow Materials Through Microphase Engineering

作者：Jiang, Ping[1];Yin, Chenjia[1];Xu, Qiqi[1];Sun, Jie[1];Zhou, Lei[1];Zhang, Lisha[1];Chen, Yanjie[1];Ding, Bingbing[1];Tian, He[1];Ma, Xiang[1]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn, Key Lab Adv Mat & Feringa Nobel Prize Scientist Jo, 130 Meilong Rd, Shanghai, Peoples R China

年份：2026

外文期刊名：ADVANCED MATERIALS

收录：;EI(收录号：20261920677807);WOS:【SCI-EXPANDED(收录号:WOS:001758192500001)】；

基金：This work was supported by the National Natural Science Foundation of China (22125803, T2488302, 22578124), the Science and Technology Commission of Shanghai Municipality (24DX1400200), the Guangxi Department of Science and Technology (AA23062016), Fundamental and Interdisciplinary Disciplines Breakthrough Plan of the Ministry of Education of China (JYB2025XDXM404), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：block polymer; microphase engineering; room-temperature phosphorescence; ultralong afterglow

摘要：Organic ultralong room-temperature phosphorescence (OURTP) materials are promising for flexible optoelectronics but often suffer from a trade-off between phosphorescence efficiency and mechanical flexibility. To overcome this limitation, a block copolymer system is developed through the incorporation of coronene into poly(styrene-isoprene-styrene) (SIS). Within this structure, the rigid polystyrene (PS) segments immobilize the phosphors and facilitate charge-transfer-mediated OURTP, resulting in high phosphorescence efficiency (Phi = 54.9%, tau = 6.26 s). Concurrently, the polyisoprene (PI) segment ensures outstanding elasticity, endowing the material with ultra-stretchability (2380.5% strain) and fatigue resistance (withstanding 600% strain over 40 cycles). The system also maintains intrinsic morphological homogeneity, effectively avoiding phase separation. Through microphase engineering, this work successfully reconciles the long-standing conflict between luminescence and flexibility, providing a general design strategy for multifunctional polymers suitable for wearable electronics that demand both deformability and phosphorescent capability.