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Ytterbium complexes with 2-tosylamino-4-bromobenzylidene-halogenbenzoyhydrazones for highly NIR emitting solution-processed OLEDs Научная публикация

Журнал Journal of Luminescence
ISSN: 1872-7883 , E-ISSN: 0022-2313
Вых. Данные Год: 2022, Том: 244, Номер статьи : 118702, Страниц : DOI: 10.1016/j.jlumin.2021.118702
Авторы Fedichkina Anna D. 1 , Koshelev Daniil S. 1 , Vashchenko Andrey A. 2 , Tcelykh Lyubov O. 3 , Goloveshkin Alexander S. 4 , Gontcharenko Victoria E. 3 , Latipov Egor V. 1 , Medved'ko Alexey V. 5 , Vatsadze Sergey Z. 5 , Burlov Anatolii S. 6 , Utochnikova Valentina V. 1
Организации
1 Faculty of the Material Science, Lomonosov Moscow State University, Moscow, 119991, Russia
2 Lebedev Physical Institute RAS, Moscow, 119992, Russia
3 Chemistry Faculty, Lomonosov Moscow State University, Moscow, 119991, Russia
4 A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, 119991, Russia
5 Zelinsky Institute of Organic Chemistry RAS, Moscow, 119991, Russia
6 Institute of Physical and Organic Chemistry, Southern Federal University, Rostov-on-Don, 344090, Russia

Реферат: Ytterbium complexes Yb(LX)(HLX) with 2-tosylamino-4-bromobenzylidene-X-benzoylhydrazones (H2LH, X = H; H2LF, X = F; H2LI, X = I) were obtained, their luminescent properties characterized. Halogenation resulted in the increase of solubility (up to 24 g/L in THF) and quantum yield (up to 1.9%). High solubility and high quantum yields resulted in successfully testing these complexes as purely NIR-emitting host-free emitting layers in OLEDs. Surprisingly, among the tested materials the highest efficiency (110 μW/W) was demonstrated by the Yb(LH)(HLH) complex with the lowest quantum yield (0.5%). This efficiency is the highest for the Yb electroluminescence by far, and it was obtained for the solution-processed OLED.
Библиографическая ссылка: Fedichkina A.D. , Koshelev D.S. , Vashchenko A.A. , Tcelykh L.O. , Goloveshkin A.S. , Gontcharenko V.E. , Latipov E.V. , Medved'ko A.V. , Vatsadze S.Z. , Burlov A.S. , Utochnikova V.V.
Ytterbium complexes with 2-tosylamino-4-bromobenzylidene-halogenbenzoyhydrazones for highly NIR emitting solution-processed OLEDs
Journal of Luminescence. 2022. V.244. 118702 . DOI: 10.1016/j.jlumin.2021.118702 WOS OpenAlex
Идентификаторы БД:
Web of science: WOS:000791229600003
OpenAlex: W4200108453
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БД Цитирований
OpenAlex 15
Web of science 14
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