Registration Number
0223U001872,
(0121U109506)
, R & D reports
Title
Development of flexible mechanoluminescent organic heterostructures with aggregation-induced electroluminescence enhancement for lighting systems
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Дослідження впливу фізикотехнологічних особливостей формування тонких функціональних плівок на спектр електролюмінесценції включно з дослідженням впливу кута згину гнучкої підкладки.
Head
Stakhira Pavlo Yo., Доктор технічних наук
Registration Date
04-02-2023
Organization
Lviv Polytechnic National University
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The aim of the project is to establish the relationship between the electronic structure, mechanoluminescent properties and the effect of thermally activated delayed fluorescence in newly synthesized emission materials to create flexible mechanoluminescent organic heterostructures with aggregation-induced OLED elements.
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The methodology for the synthesis of organic donor-acceptor compounds demonstrating thermally activated long-term fluorescence, aggregation-induced enhancement of emission, mechanochromism, polymorphism was developed and optimized to obtain the highest yield of reactions and simplify the procedure of their synthesis. A mathematical model of the interaction of aggregation-enriched compounds was developed to calculate their spectral and energy characteristics. A new series of compounds characterized by the presence of TADF effect with photoluminescence quantum yields of their deoxygenated toluene solutions from 55 to 82% were synthesized. Fabricated undoped and doped CN1-based TADF OLEDs exhibiting high maximum external quantum efficiency values of 8.4% and 15.9%. Donor-acceptor emitter materials of blue emission, which are characterized by the lack of influence of solid-state solvation on TADF emissive properties, were developed and studied.
Product Description
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Ivaniuk Khrystyna B.
Ivakh Mariia S.
Baryshnikov Hlib V.
Bulavinets Tetiana O.
Danyliv Iryna A.
Danyliv Yan Yu.
Kutsii Stepan A.
Minaiev Borys P.
Melnykov Serhii O.
Shymchyshyn Olha Yo.
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2023-02-04
