Abstract
Basic processes of the electroluminescence phenomenon in OLED structures are described. The conventional theoretical models for injection, transport and recombination of charge carriers and their relationship with the obtained experimental data are discussed. The mobility of charge carriers is a key characteristic of the electron and hole transport. Methods for measuring mobility that adequately reflect the transport of charge carriers in OLEDs are considered.
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Funding
This study was supported by the Ministry of Science and Higher Education of the Russian Federation within the framework of the state assignment for scientific activity of 2023 for Southern Federal University, no. FENW-2023-0011 (chemical synthesis of compounds) and for the Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, no. 122011300052-1 (characterization of solid films and OLEDs).
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Translated by Z. Svitanko
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The article represents a translated, revised, and updated Chapter 4, Electronic Processes in OLED Structures, from 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. Section 2, Electron–Hole Transport in Functional Layers of OLED Structures has been corrected and expanded. Specifically, descriptions of methods for measuring charge carrier mobility in film structures, successfully employed in our laboratory, along with experimental results obtained using these methods, have been added. References to recent works published in 2022 and 2023 have also been included.
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Mal’tsev, E.I., Lypenko, D.A., Tameev, A.R. et al. Electronic Processes in OLED Structures. Russ J Coord Chem 49 (Suppl 1), S23–S28 (2023). https://doi.org/10.1134/S107032842360081X
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DOI: https://doi.org/10.1134/S107032842360081X