Lifetime-tunable circularly polarized luminescent system based on triplet-to-singlet Förster resonance energy transfer  

作　　者：Zhenyi He Zizhao Huang Xiang Ma 

机构地区：[1]Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center,Institute of Fine Chemicals,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China

出　　处：《Science China Chemistry》2024年第9期2918-2922,共5页中国科学（化学英文版）

基　　金：supported by the National Key Research and Development Program of China(2022YFB3203500);the National Natural Science Foundation of China(22125803,22020102006);Shanghai Municipal Science and Technology Major Project(2018SHZDZX03);the Postdoctoral Fellowship Program of China Postdoctoral Science Foundation;the Fundamental Research Funds for the Central Universities。

摘　　要：Circularly polarized luminescence(CPL)materials have received widespread attention due to their remarkable performance and broad applications.However,current CPL material research primarily focuses on tunable color,intensity,and reversibility.Constructing CPL with adjustable lifetime remains a significant challenge.Herein,a series of CPL polymeric materials with tunable lifetime were obtained by employing phosphorescent terephthalic acid and chiral organic small molecule R/S-BNAF(a luminescent binaphthol derivative)to copolymerize with acrylamide in different ratios.It was verified that this performance results from the different energy transfer efficiency between luminophores with varying ratios of the monomers for copolymerization.This strategy to realize CPL with tunable lifetime by modulating the energy transfer efficiency will provide a new perspective to broaden the applications of CPL materials.

关 键 词：circularly polarized luminescence tunable lifetime Förster resonance energy transfer room temperature phosphorescence 

分 类 号：TB34[一般工业技术—材料科学与工程]