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Issue 16, 2018
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Efficient non-doped fluorescent OLEDs with nearly 6% external quantum efficiency and deep-blue emission approaching the blue standard enabled by quaterphenyl-based emitters

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Abstract

Simultaneously achieving excellent color purity approaching or surpassing the blue standard and outstanding device performance remains a big challenge for blue fluorescent emitters. In this study, two quaterphenyl derivatives are rationally designed and synthesized as deep-blue emitters with high photoluminescence quantum yields of nearly 80%. These emitters are applied in non-doped OLEDs yielding a peak EQE of 5.94% and CIE coordinates of (0.152, 0.085), approaching the NTSC blue standard. When applied to doped OLEDs, these derivatives emit violet-blue light with a peak EQE of 6.55% and CIE coordinates of (0.156, 0.055).

Graphical abstract: Efficient non-doped fluorescent OLEDs with nearly 6% external quantum efficiency and deep-blue emission approaching the blue standard enabled by quaterphenyl-based emitters

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Publication details

The article was received on 19 Jan 2018, accepted on 21 Mar 2018 and first published on 23 Mar 2018


Article type: Paper
DOI: 10.1039/C8TC00317C
Citation: J. Mater. Chem. C, 2018,6, 4479-4484
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    Efficient non-doped fluorescent OLEDs with nearly 6% external quantum efficiency and deep-blue emission approaching the blue standard enabled by quaterphenyl-based emitters

    W. Zeng, Y. Zhao, W. Ning, S. Gong, Z. Zhu, Y. Zou, Z. Lu and C. Yang, J. Mater. Chem. C, 2018, 6, 4479
    DOI: 10.1039/C8TC00317C

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