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Issue 24, 2012
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Benzene-cored fluorophors with TPE peripheries: facile synthesis, crystallization-induced blue-shifted emission, and efficient blue luminogens for non-doped OLEDs

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Abstract

In this paper, three benzene-cored fluorophors with TPE moiety peripheries (PhTPE, Ph2TPE and Ph3TPE), are synthesized and their thermal, optical and electronic properties are investigated. All of them are nearly non-emissive when readily dissolved in solution but become highly emissive in the aggregate state, making them promising candidates for optoelectronic materials. Non-doped OLEDs with these luminogens as emissive layers exhibit sky-blue to deep blue emissions from 488 to 457 nm with Lmax, ηC, max and ηP, max up to 3966 cd m−2, 5.0 cd A−1 and 3.87 lm W−1, respectively, owing to the twisted conformation between the benzene core and TPE units.

Graphical abstract: Benzene-cored fluorophors with TPE peripheries: facile synthesis, crystallization-induced blue-shifted emission, and efficient blue luminogens for non-doped OLEDs

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Publication details

The article was received on 25 Mar 2012, accepted on 20 Apr 2012 and first published on 20 Apr 2012


Article type: Paper
DOI: 10.1039/C2JM31855E
Citation: J. Mater. Chem., 2012,22, 12001-12007

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    Benzene-cored fluorophors with TPE peripheries: facile synthesis, crystallization-induced blue-shifted emission, and efficient blue luminogens for non-doped OLEDs

    J. Huang, N. Sun, J. Yang, R. Tang, Q. Li, D. Ma, J. Qin and Z. Li, J. Mater. Chem., 2012, 22, 12001
    DOI: 10.1039/C2JM31855E

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