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Electroluminescence Properties of Rare-Earth Metal Complexes with Organic Ligands

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Abstract

This review article explores and analyzes published data on the photoluminescence and electroluminescence characteristics of rare earth element (REE) complex compounds, which are promising materials for creating highly efficient OLED devices. Distinguishing features of such compounds include their narrow emission bands, Stokes shift, long lifetime, and high quantum yields, enabling high resolution and color purity in constructed OLED devices. Using REE complexes as emissive layers in light-emitting diodes ensures significant color saturation and high device efficiency.

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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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Correspondence to V. G. Vlasenko.

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

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Translated by E. Yablonskaya

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ADDITIONAL INFORMATION

The article represents an updated and revised Chapter 6.6 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 article additionally includes a review of recent years (2019−2022) focusing on a series of new coordination compounds of lanthanides LnpXmLk (Ln = Eu, Gd, Tb, Lu, Yb, Er; X = Cl, NO3; p = 1, 2; k = 1−3; m = 0−3) with arylhydrazone derivatives of 2-(N-tosylamino)benzaldehyde, exhibiting photoluminescence in the near-IR range with quantum yields of up to 1.3% and serving as promising IR phosphors for bioimaging. High-efficiency OLED devices were manufactured based on these compounds, with performance metrics, for example, for ytterbium complexes, that set records for such devices.

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Burlov, A.S., Vlasenko, V.G., Garnovskii, D.A. et al. Electroluminescence Properties of Rare-Earth Metal Complexes with Organic Ligands. Russ J Coord Chem 49 (Suppl 1), S88–S96 (2023). https://doi.org/10.1134/S1070328423600869

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  • DOI: https://doi.org/10.1134/S1070328423600869

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