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Issue 36, 2012
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Efficient orange light-emitting electrochemical cells

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We report the first bis-cyclometalated cationic iridium(III) complex with N-aryl-substituted 1H-imidazo[4,5-f][1,10]phenanthroline. The complex emits yellow-orange phosphorescence with a maximum at 583 nm, a quantum yield of 43%, and an excited-state lifetime of 910 ns in argon-saturated dichloromethane. Optimized orange light-emitting electrochemical cells with the new Ir(III) complex exhibit fast turn-on, a peak luminance of 684 cd m−2 and a peak efficacy of 6.5 cd A−1; in 850 h of continuous operation their luminance and efficacy decrease only by 20%.

Graphical abstract: Efficient orange light-emitting electrochemical cells

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The article was received on 19 Jun 2012, accepted on 26 Jul 2012 and first published on 26 Jul 2012

Article type: Paper
DOI: 10.1039/C2JM33969B
J. Mater. Chem., 2012,22, 19264-19268

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    Efficient orange light-emitting electrochemical cells

    D. Tordera, A. Pertegás, N. M. Shavaleev, R. Scopelliti, E. Ortí, H. J. Bolink, E. Baranoff, M. Grätzel and M. K. Nazeeruddin, J. Mater. Chem., 2012, 22, 19264
    DOI: 10.1039/C2JM33969B

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