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Issue 9, 2014
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Host–guest blue light-emitting electrochemical cells

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Carbazole, a commonly used hole-transporter for organic electronics, has been modified with an imidazolium cation and a hexafluorophosphate counter-anion to give an ionic hole-transporter. It has been applied as one of the hosts in a host–guest blue light-emitting electrochemical cell (LEC) with the neutral blue emitter FIrPic. We have obtained efficient and bright blue LECs with an electroluminescence maximum at 474 nm and efficacy of 5 cd A−1 at a luminance of 420 cd m−2, thereby demonstrating the potential of the ionic organic charge-transporters and of the host–guest architecture for LECs.

Graphical abstract: Host–guest blue light-emitting electrochemical cells

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The article was received on 08 Oct 2013, accepted on 25 Nov 2013 and first published on 15 Jan 2014

Article type: Paper
DOI: 10.1039/C3TC31983K
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Citation: J. Mater. Chem. C, 2014,2, 1605-1611
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    Host–guest blue light-emitting electrochemical cells

    A. Pertegás, N. M. Shavaleev, D. Tordera, E. Ortí, M. K. Nazeeruddin and H. J. Bolink, J. Mater. Chem. C, 2014, 2, 1605
    DOI: 10.1039/C3TC31983K

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