Synthesis of heteroleptic ytterbium complexes with electron-accepting- and electron-donor-substituted 2-tosylamino-benzylidene-aryloyl-hydrazones for host-free NIR emitting OLEDs

Koshelev, D.; Medved'ko, A.; Vashchenko, A.; Lepnev, L.; Goloveshkin, A.; Maloshitskaya, O.; Chikineva, T.; Pavlov, A.; Roslyakov, I.V.; Utochnikova, V.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 марта 2026 г.

Авторы: Koshelev Daniil, Medved'ko Aleksei, Vashchenko Andrey, Lepnev Leonid, Goloveshkin Alexander, Maloshitskaya Olga, Chikineva Tatiana, Pavlov Alexander, Roslyakov Ilya V., Utochnikova Valentina
Журнал: Inorganic Chemistry Communications
Год издания: 2026
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Номер статьи: 116297
DOI: 10.1016/j.inoche.2026.116297
Аннотация: A series of new lanthanide complexes with electron-donating (triphenylamine-, phenylcarbazole-) and electron-withdrawing (benzoxazole-, methyloxodiazole-, and phenyloxodiazole-) substituted Schiff bases ((E)-N-(2-((2-aryloylhydrazono)methyl)phenyl)-4-methylbenzenesulfonamide), designed to enhance charge carrier mobility, have been synthesized and fully characterized as well as the 2 structures of the compounds were established. Heteroleptic complexes with ligands of both classes were obtained during the mixed-ligand method synthesis. Photoluminescence quantum yield of heteroleptic species in contrast to luminescence lifetime was found to be higher than homoleptic ones – up to 1.65%. An 16% improvement in external current efficiency (ECE) in the same OLED heterostructure was shown (ECE up to 140 μW/W) in comparison with homoleptic ones (ECE up to 120 μW/W). This proves the correctness of the approach to improvement of the electroluminescence of the OLED based on the metal complexes.
Добавил в систему: Кошелев Даниил Сергеевич

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Synthesis of heteroleptic ytterbium complexes with electron-accepting- and electron-donor-substituted 2-tosylamino-benzylidene-aryloyl-hydrazones for host-free NIR emitting OLEDsстатья Исследовательская статья Краткое сообщение

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