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Issue 41, 2016
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Lanthanide 9-anthracenate: solution processable emitters for efficient purely NIR emitting host-free OLEDs

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Abstract

Searching for new NIR emitting materials, lanthanide 9-anthracenates Ln(ant)3 were synthesized and thoroughly characterized. Ytterbium 9-anthracenate Yb(ant)3, that demonstrated the highest NIR luminescence efficiency, was successfully used as an emission layer of a host-free OLED and its electroluminescence quantum efficiency, corresponding to the sole band at 1000 nm, reached 0.21%. This performance could be achieved due to the high quantum yield of Yb(ant)3, which reached 1.5% and was increased up to 2.5% by partial Yb3+ substitution with Lu3+, as well as its high electron mobility due to the extended stacking in its crystal structure. The first gadolinium-based PHOLED was prepared based on Gd(ant)3.

Graphical abstract: Lanthanide 9-anthracenate: solution processable emitters for efficient purely NIR emitting host-free OLEDs

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Publication details

The article was received on 19 Aug 2016, accepted on 20 Sep 2016 and first published on 20 Sep 2016


Article type: Paper
DOI: 10.1039/C6TC03586H
Citation: J. Mater. Chem. C, 2016,4, 9848-9855
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    Lanthanide 9-anthracenate: solution processable emitters for efficient purely NIR emitting host-free OLEDs

    V. V. Utochnikova, A. S. Kalyakina, I. S. Bushmarinov, A. A. Vashchenko, L. Marciniak, A. M. Kaczmarek, R. Van Deun, S. Bräse and N. P. Kuzmina, J. Mater. Chem. C, 2016, 4, 9848
    DOI: 10.1039/C6TC03586H

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