Abstract
Light-emitting diodes are budget-friendly solid-state light sources that find use in the very diverse areas: from lighting to data display devices. The history of the discovery of the electroluminescence phenomenon and development of the technology of inorganic (LED) and organic light-emitting diodes (OLED) is presented. Today, there has been a widespread transition to light-emitting diode sources based on inorganic semiconductors, ensuring significant energy savings. However, OLED technologies continue to undergo intensive development. Advantages of OLED over other light sources and areas of their practical use are considered. We discussed the fundamental principles of manufacturing organic light sources with a white emission spectrum, based on low-molecular-weight and polymeric compounds, and considered various approaches for developing polymeric materials with a white emission spectrum. Prospects of the development of the market of OLED light sources are evaluated.
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Funding
The study was supported by the Ministry of Science and Higher Education of the Russian Federation in the framework of the state assignment in the sphere of scientific activity in 2023 of the Southern Federal University (no. FENW-2023-0014, chemical synthesis of compounds) and Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences (no. 122011300052-1, characterization of solid films and OLED).
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Translated by E. Yablonskaya
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The article represents a translated, supplemented, and revised excerpt 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. Primarily, this book focuses on metal chelate complexes (Ir, Eu, Tb, Al, and Zn), which are used or considered as prospective additives in the light-emitting layers of OLEDs. Many of the discussed metal complexes were first synthesized and tested in OLEDs with the participation or under the supervision of the authors of the book.The article is based on Chapter 1 of this book. Section 1, OLED Structures in Data Display Devices, has been supplemented with contemporary information on the development of OLED technology and the emergence of new data display devices on the market. No significant changes were made to Section 2, OLED Structures with the White Electroluminescence Spectrum. Section 3, Market and Prospects, has been modified and expanded to align with the current state and prospects of the OLED device market.
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Mal’tsev, E.I., Lypenko, D.A., Dmitriev, A.V. et al. Electroluminescence and Organic Light-Emitting Diodes. Russ J Coord Chem 49 (Suppl 1), S2–S6 (2023). https://doi.org/10.1134/S107032842360078X
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DOI: https://doi.org/10.1134/S107032842360078X