1569852-68-1Relevant academic research and scientific papers
Construction of efficient blue AIE emitters with triphenylamine and TPE moieties for non-doped OLEDs
Huang, Jing,Jiang, Yibin,Yang, Jie,Tang, Runli,Xie, Ni,Li, Qianqian,Kwok, Hoi Sing,Tang, Ben Zhong,Li, Zhen
, p. 2028 - 2036 (2014/03/21)
In this paper, by merging the hole-dominated triphenylamine (TPA) and tetraphenylethene (TPE) moieties together with different linkage positions, four derivatives of 1,2-bis[4′-(diphenylamino)biphenyl-4-yl]-1,2- diphenylethene (2TPATPE) were successfully synthesized with confirmed structures, and their thermal, optical and electronic properties were fully investigated. Thanks to the introduction of the meta-linkage mode on the TPE core, their π-conjugation length could be effectively restricted to ensure blue emission. The non-doped OLEDs based on these four emitters exhibit blue emissions from 443-466 nm, largely blue-shifted with respect to the green emission of 2TPATPE (514 nm). Meanwhile, good electroluminescence efficiencies with Lmax, ηC,max, and ηP,max of up to 8160 cd m-2, 3.79 cd A-1, and 2.94 Im W-1 respectively, have also been obtained, further validating our rational design of blue AIE fluorophores. The Royal Society of Chemistry.
