文献类型：期刊文献

英文题名：Visible Light Activated Organic Room-Temperature Phosphorescence Based on Triplet-to-Singlet Forster-Resonance Energy Transfer

作者：Zhao, Yunhan[1,2];Ma, Liangwei[1,2];Huang, Zizhao[1,2];Zhang, Junji[1,2];Willner, Itamar[3];Ma, Xiang[1,2];Tian, He[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Inst Fine Chem, Frontiers Sci Ctr Materiobiol & Dynam Chem,Key La, Meilong Rd 130, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Inst Fine Chem, Frontiers Sci Ctr Materiobiol & Dynam Chem,Fering, Meilong Rd 130, Shanghai 200237, Peoples R China;[3]Hebrew Univ Jerusalem, Ctr Nanosci & Nanotechnol, Inst Chem, IL-91904 Jerusalem, Israel

年份：2022

卷号：10

期号：8

外文期刊名：ADVANCED OPTICAL MATERIALS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000762655600001)】；

基金：The authors gratefully acknowledged the financial support from the National Natural Science Foundation of China (21788102, 22125803, 22020102006, and 21871083), project supported by the Shanghai Municipal Science and Technology Major Project (Grant No. 2018SHZDZX03), the Program of Shanghai Academic/Technology Research Leader (20XD1421300), "Shu Guang" project supported by the Shanghai Municipal Education Commission and Shanghai Education Development Foundation (19SG26), the Innovation Program of Shanghai Municipal Education Commission (2017 01-07-00-02-E00010), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：organic room-temperature phosphorescence; photodegradation; triplet-to-singlet Forster-resonance energy transfer; visible-light stimulation

摘要：Stimuli-responsive room-temperature phosphorescence (RTP) materials have drawn widespread attention in information encryption, sensors, and bio-imaging. In this work, a photoactivated organic RTP material through triplet-to-singlet Forster-resonance energy transfer (TS-FRET) inhibited by visible-light stimulation is reported. A stable phosphorescence energy donor and a fluorescent dye sensitive to visible light as the energy acceptor are doped into polyvinylpyrrolidone (PVP) polymer matrix to construct an amorphous organic RTP system. Due to the photodegradation characteristic of the energy acceptor, the phosphorescence intensity of the energy donor increases visually upon irradiation with visible light. This study provides a novel strategy to design stimuli-responsive organic RTP materials.