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Luminescence Properties of the Iridium(III) Complexes

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Abstract

This review summarizes the results of the synthesis, photoluminescence, and electroluminescence of the main classes of cyclometallated iridium(III) complex compounds. The primary focus of the review is on heteroleptic iridium(III) complexes, which contain two equivalent C^N ligands and an additional auxiliary ligand. Numerous examples demonstrate that the selection and modification of the ligand systems in iridium(III) complexes, using various donor or acceptor groups, alter significantly their spectral characteristics, often achieving record levels of brightness and emission efficiency for OLED devices manufactured based on them.

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Funding

This study was supported by the Ministry of Science and Higher Education of the Russian Federation (state assignment in the sphere of scientific activities for 2023 no. FENW-2023-0011).

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Authors and Affiliations

  1. Research Institute of Physical and Organic Chemistry, Southern Federal University, Rostov-on-Don, Russia

    A. S. Burlov, A. I. Uraev & Yu. V. Koshchienko

  2. Research Institute of Physics, Southern Federal University, Rostov-on-Don, Russia

    V. G. Vlasenko

  3. Southern Scientific Center, Russian Academy of Sciences, Rostov-on-Don, Russia

    D. A. Garnovskii

  4. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia

    E. I. Mal’tsev, D. A. Lypenko & A. V. Dmitriev

Authors
  1. A. S. Burlov
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  2. V. G. Vlasenko
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  3. D. A. Garnovskii
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  4. A. I. Uraev
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  5. Yu. V. Koshchienko
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  6. E. I. Mal’tsev
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  7. D. A. Lypenko
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  8. A. V. Dmitriev
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Corresponding author

Correspondence to V. G. Vlasenko.

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The authors of this work declare that they have no conflicts of interest.

Additional information

Translated by E. Yablonskaya

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ADDITIONAL INFORMATION

The article represents a revised and updated Chapter 6.5 of the book by A.S. Burlov, V.G. Vlasenko, D.A. Garnovskiy, A.I. Uraev, E.I. Maltsev, D.A. Lypenko, and A.V. Vannikov, Electroluminescent Organic Light-Emitting Diodes Based on Metal Coordination Compounds, Rostov-on-Don: Yuzhn. Fed. Univ., 2015; ISBN 978-5-9275-1469-4.The results on the synthesis and photoluminescence and electroluminescence properties of a cyclometallated iridium(III) complex based on [2-(2'-tosylamino)phenyl]benzoxazole were added to the original chapter of the monograph. The manufactured OLED device, with this iridium(III) complex as the emitter, exhibited intense yellow phosphorescence with a maximum brightness of 9000 cd/m2 at a current density of 180 mA/cm2 and had a relatively low turn-on voltage of approximately 6 V.

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Burlov, A.S., Vlasenko, V.G., Garnovskii, D.A. et al. Luminescence Properties of the Iridium(III) Complexes. Russ J Coord Chem 49 (Suppl 1), S68–S87 (2023). https://doi.org/10.1134/S1070328423600857

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  • DOI: https://doi.org/10.1134/S1070328423600857

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