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Issue 40, 2018
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Doubly boron-doped pentacenes as emitters for OLEDs

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A new class of benchtop-stable boron-doped pentacenes, i.e., 5,14-dimesityl-5,14-dihydro-5,14-diborapentacene (3H) and its 2,3-dihalogenated derivatives, 3F and 3Cl, have been successfully applied as emitters in fluorescent organic light-emitting diodes (OLEDs). The best performance was achieved with 2% of the blue emitter 3H doped in 9,10-di-(2-naphthyl)anthracene (ADN) as the emitting layer (turn-on voltage Von = 3.3 V, λem = 476 nm, maximum external quantum efficiency ηext = 3.4% with a negligible roll-off up to 10 000 cd m−2, maximum luminance Lmax = 39 180 cd m−2). Contrary to the blue-emitting 3H-based device, 3F- and 3Cl-containing OLEDs produced turquoise (484 nm) and green (492 nm) light, respectively.

Graphical abstract: Doubly boron-doped pentacenes as emitters for OLEDs

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The article was received on 08 Aug 2018, accepted on 24 Sep 2018 and first published on 24 Sep 2018

Article type: Paper
DOI: 10.1039/C8TC03954B
Citation: J. Mater. Chem. C, 2018,6, 10881-10887

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    Doubly boron-doped pentacenes as emitters for OLEDs

    A. John, M. Bolte, H. Lerner, G. Meng, S. Wang, T. Peng and M. Wagner, J. Mater. Chem. C, 2018, 6, 10881
    DOI: 10.1039/C8TC03954B

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