Registration Number
0225U001376,
(0122U000760)
, R & D reports
Title
Impact of spin-orbit coupling on molecular oxygen sensors and organic light-emitting heterostructures with thermoactivated long-term fluorescence
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Дослідження кінетичних, люмінесцентних та напівпровідникових властивостей новосинтезованих органічних та металоорганічних емітерів та їх застосування в конструкції органічних світловипромінюючих діодів.
Head
Minaiev Borys P., Доктор хімічних наук
Registration Date
30-01-2025
Organization
Bohdan Khmelnytsky National University of Cherkasy
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The main goal of the project is the development and synthesis of new full-color emission materials and their further application in the design of oxygen sensors and high-efficiency organic light-emitting diodes.
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This project aims to develop and synthesize of new full-color electroluminescent materials and their subsequent application in the design of oxygen sensors and high-efficiency organic light-emitting diodes (OLEDs), taking into account the results of analyzing spin-orbit coupling (SOC) effects in luminophore molecules. These organic LEDs overcome the limitations of the luminance of 1000 cd/m2 for the IES TM-30-15 color rendering standard and demonstrate a wide color gamut that reproduces the dynamic range with deep black (less than 0.0005 cd/m²) and the brightest light colors for WCG display technologies. The directed synthesis of new phosphors using SOE prediction and new technological approaches made it possible to obtain light-emitting structures of different color temperatures from warm white (2700–3000 K) to white (5000–7000 K) radiation for lighting systems. The relationship between the electronic structure and photophysical characteristics of a series of new synthesized emitters was established and ergonomic and energy-efficient donor-acceptor (DA) organic materials with energy transfer from exciplexes that meet IES standards were implemented. To fulfill the project tasks, a wide arsenal of modern physicochemical research methods was involved, including UV-visible and IR spectroscopy, NMR, mass spectrometry, photoelectron spectroscopy, powder X-ray diffractometry, X-ray structural analysis, linear and cyclic voltammetry, thermogravimetric analysis, high-precision methods of vacuum deposition of materials in multilayer LED structures. Modern quantum chemical calculation methods, such as density functional theory, were used to predict and analyze experimental data. Modern OLED technologies such as controlled solution deposition and thermal vacuum deposition of thin films of organic compounds were also used.
Product Description
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Bondarchuk Serhii V.
Karaush-Karmazin Nataliia M.
Minaieva Valentyna O.
Novochub Kseniia V.
Panchenko Oleksandr O.
Stakhira Pavlo Yo.
Chernyuk Maryana V.
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2025-01-30
