Registration Number
0221U106787,
(0121U109506)
, R & D reports
Title
Development of flexible mechanoluminescent organic heterostructures with aggregation-induced electroluminescence enhancement for lighting systems
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Квантово- хімічні розрахунки та молекулярний дизайн органічних напівпровідників для механолюмнісцентних TADF та агрегаційно- збагачених гетероструктур.
Head
Stakhira Pavlo Yo., Доктор технічних наук
Registration Date
20-12-2021
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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Theoretical calculations of conformational states and analysis of charge carrier mobility in the donor-acceptor structure crystal were performed. Synthesis and investigation of organic compounds, demonstrating thermally activated delayed fluorescence, aggregation-induced emission enhancement, mechanochromism, polymorphism, and various combinations of these properties were performed, correlation of results of experimental measurements and theoretical calculations was established. The development of new organic light-emitting TADF heterostructures with green color of emission based on newly synthesized aggregation-enriched organic semiconductor was carried out. An optical oxygen sensor based on a newly synthesized compound, which demonstrates a combination of thermally activated long-term fluorescence and aggregation-induced emission enhancement was fabricated. The best OLED device based on the dianthracenylazatrioxa[8]circulene fluorescent emitter has a brightness around 16 000 Cd m-2 and external quantum efficiency of 3.3%. By using dianthracenylazatrioxa[8]circulene as a host matrix material the quantum dots based OLEDs were fabricated.
Product Description
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Ivaniuk Khrystyna B.
Baryshnikov Hlib V.
Danyliv Iryna A.
Danyliv Yan Yu.
Kutsii Stepan A.
Minaiev Borys P.
Melnykov Serhii O.
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2021-12-20
