A highly efficient open-shell singlet luminescent diradical with strong magnetoluminescence properties  

作　　者：Alim Abdurahman Li Shen Jingmin Wang Meiling Niu Ping Li Qiming Peng Jianpu Wang Geyu Lu 

机构地区：[1]State Key Laboratory of Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Qianjin Avenue 2699,Changchun 130012,China [2]College of Chemical Engineering and Environmental Chemistry,Weifang University,Weifang 261061,China [3]Key Laboratory of Flexible Electronics(KLOFE),Institute of Advanced Materials(IAM)&School of Flexible Electronics(Future Technologies),Nanjing Tech University(NanjingTech),30 South Puzhu Road,Nanjing 211816,China [4]Key Laboratory for Organic Electronics and Information Displays&Institute of Advanced Materials(IAM)National Synergistic Innovation Center for Advanced Materials(SICAM),Nanjing University of Posts&Telecommunications,9 Wenyuan Road,Nanjing 210023,China

出　　处：《Light(Science & Applications)》2023年第12期2636-2643,共8页光（科学与应用)（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.52103210,62022040,51972171,and 61935017);Department of Science and Technology of Jilin Province(20230101363JC);Scientific Research Fund for Doctor of Weifang University(2020BS17);the Science and Technology Huimin Plan of Weifang High-tech Zone(2020KJHM02).

摘　　要：Developing open-shell singlet(OS)diradicals with high luminescent properties and exceptional single-molecule magnetoluminescence(ML)performance is extremely challenging.Herein,we propose a concept to enhance luminescent efficiency by adjusting the donor conjugation of OS diradicals,thereby achieving a highly luminescent diradical,DR1,with outstanding stability and making it a viable option for use in the emitting layer of organic light-emitting diodes(OLEDs).More importantly,the 0.5wt%-DR1 doped film demonstrates significant single-molecule magnetoluminescence(ML)properties.A giant ML value of 210%is achieved at a magnetic field of 7T,showing the great potential of DR1 in magneto-optoelectronic devices.

关 键 词：luminescence LUMINESCENT MAGNETO 

分 类 号：O43[机械工程—光学工程]