文献类型：期刊文献

英文题名：Engendering persistent organic room temperature phosphorescence by trace ingredient incorporation

作者：Ding, Bingbing[1,2];Ma, Liangwei[1,2];Huang, Zizhao[1,2];Ma, Xiang[1];Tian, He[1,2]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Key Lab Adv Mat, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：7

期号：19

外文期刊名：SCIENCE ADVANCES

收录：;EI(收录号：20212010354391);WOS:【SCI-EXPANDED(收录号:WOS:000648332700038)】；

基金：This work was supported by the National Natural Science Foundation of China 21788102, 22020102006, 21722603, and 21871083, the Program of Shanghai Academic/Technology Research Leader 20XD1421300, and the Innovation Program of Shanghai Municipal Education Commission 2017-01-07-00-02-E00010. "Shu Guang" project was supported by the Shanghai Municipal Education Commission and the Shanghai Education Development Foundation 19SG26, the Shanghai Municipal Science and Technology Major Project 2018SHZDZX03, and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Phosphorescence - Optoelectronic devices

摘要：Pure organic persistent room temperature phosphorescence (RTP) has shown great potential in information encryption, optoelectronic devices, and bio-applications. However, trace impurities are generated in synthesis, causing unpredictable effects on the luminescence properties. Here, an impurity is isolated from a pure organic RTP system and structurally characterized that caused an unusual ultralong RTP in matrix even at 0.01 mole percent content. Inspired by this effect, a series of compounds are screened out to form the bicomponent RTP system by the trace ingredient incorporation method. The RTP quantum yields reach as high as 74.2%, and the lifetimes reach up to 430 ms. Flexible application of trace ingredients to construct RTP materials has become an eye-catching strategy with high efficiency, economy, and potential for applications as well as easy preparation.