Publication:
Blue OLEDs with narrow bandwidth using CF3 substituted bis((carbazol-9-yl)phenyl)amines as emitters: Structural regulation of linker between donor and acceptor in chromophores

Файлы
W3178097078.pdf(3.49 MB)
Дата
2021
Авторы
Zhu, L.
Zhang, H.
Peng, X.
Zhang, M.
Qu, J.
Journal Title
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Научные группы
Организационные подразделения
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Организационная единица
Инженерно-физический институт биомедицины
Цель ИФИБ и стратегия развития – это подготовка высококвалифицированных кадров на базе передовых исследований и разработок новых перспективных методов и материалов в области инженерно-физической биомедицины. Занятие лидерских позиций в биомедицинских технологиях XXI века и внедрение их в образовательный процесс, что отвечает решению практикоориентированной задачи мирового уровня – диагностике и терапии на клеточном уровне социально-значимых заболеваний человека.
Выпуск журнала
Аннотация
© 2021 Elsevier LtdThree new donor-acceptor (D-A) chromophores decorated with bis(trifluoromethyl)-substituted phenyl group as acceptor and bis(4-(9H-carbazol-9-yl)phenyl)amine as donor unit, namely 1,4-naphthyl-CF3 (1), 1,5-naphthyl-CF3 (2) and Ph-CF3 (3), were designed and synthesized. Their photophysical and electrochemical characteristics, and corresponding theoretical calculations were investigated. They showed blue emissions with high photoluminescence quantum yields (PLQY). Doped organic light-emitting diodes (OLEDs) based on them were fabricated, which exhibited strong blue electroluminescence with emission peaks at 453, 446 and 440 nm and full width at half maximum (FWHM) of 69, 65 and 65 nm, respectively. Their Commission International del'Eclairage (CIE) coordinates correspond to (0.169, 0.158), (0.176, 0.134) and (0.163, 0.099). Besides, the maximum current efficiencies (CEs) of 2.8, 5.0 and 4.9 cd A−1; power efficiencies (PEs) of 2.9, 5.4 and 5.2 lm W−1; external quantum efficiencies (EQEs) of 2.3, 2.3 and 3.4% were achieved for 1,4-naphthyl-CF3 (1), 1,5-naphthyl-CF3 (2) and Ph-CF3 (3) doped devices D1, D2 and D3, respectively. This study clearly showed that the optoelectronic properties of these organic small molecules can be regulated by rational design of molecular structures, and their emission wavelengths could be finely tuned within the blue region.
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Цитирование
Blue OLEDs with narrow bandwidth using CF3 substituted bis((carbazol-9-yl)phenyl)amines as emitters: Structural regulation of linker between donor and acceptor in chromophores / Zhu, L. [et al.] // Dyes and Pigments. - 2021. - 194. - 10.1016/j.dyepig.2021.109627
URI
https://www.doi.org/10.1016/j.dyepig.2021.109627
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85110358740&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000685509600001
 https://openrepository.mephi.ru/handle/123456789/24347
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