Selectively Fluorinated Furan-Phenylene Co-Oligomers Pave the Way to Bright Ambipolar Light-Emitting Electronic Devices

Selectively Fluorinated Furan-Phenylene Co-Oligomers Pave the Way to Bright Ambipolar Light-Emitting Electronic Devices Full article

Journal

Advanced Functional Materials
ISSN: 1616-301X , E-ISSN: 1616-3028

Output data

Year: 2021, Volume: 31, Number: 48, Article number : 2104638, Pages count : DOI: 10.1002/adfm.202104638

Tags

ambipolar charge transport; electroluminescence; fluorination; light-emitting transistor; organic optoelectronics

Authors

Koskin Igor P. ¹ , Becker Christina S. ¹ , Sonina Alina A. ¹ , Trukhanov Vasiliy A. ^2,3 , Shumilov Nikita A. ¹ , Kuimov Anatoly D. ¹ , Zhuravleva Yuliya S. ^4,5 , Kiseleva Yuliya O. ¹ , Shundrina Inna K. ¹ , Sherin Peter S. ^4,5 , Paraschuk Dmitry Yu. ^2,3 , Kazantsev Maxim S. ¹

Affiliations

1	(Данные Web of science) Russian Acad Sci, Siberian Branch, NN Vorozhtsov Novosibirsk Inst Organ Chem, Lavrentiev Ave 9, Novosibirsk 630090, Russia
2	(Данные Web of science) Russian Acad Sci, Enikolopov Inst Synthet Polymer Mat, Profsoyuznaya St 70, Moscow 117393, Russia
3	(Данные Web of science) Lomonosov Moscow State Univ, Fac Phys, Leninskie Gory 1-62, Moscow 119991, Russia
4	(Данные Web of science) Int Tomog Ctr, Inst Skaya 3A, Novosibirsk 630090, Russia
5	(Данные Web of science) Novosibirsk State Univ, Pirogova 2A, Novosibirsk 630090, Russia

Funding (1)

Российский Научный Фонд

20-73-10090

Linearly conjugated oligomers attract ever-growing attention as promising systems for organic optoelectronics because of their inherent lucky combination of high charge mobility and bright luminescence. Among them, furan-phenylene co-oligomers (FPCOs) are distinguished by outstanding solubility, very bright luminescence, and good hole-transport properties; however, furan-containing organic semiconductors generally lack electron transport, which makes it impossible to utilize them in efficient light-emitting electronic devices, specifically, ambipolar light-emitting transistors. In this work, 1,4-bis(5-phenylfuran-2-yl)benzene (FP5) derivatives are synthesized with the fully/partially fluorinated central and edge phenyl rings. It is shown that the selective fluorination of FPCOs lowers the energies of frontier molecular orbitals, maintaining the bandgap, solubility, and bright luminescence, dramatically improves the photostability, tunes the pi-pi stacked packing, and allows the first realization of electron transport in FPCOs. It is found that selectively fluorinated 2,2 '-(2,3,5,6-tetrafluoro-1,4-phenylene)bis[5-(3,5-difluorophenyl)furan] demonstrates well-balanced ambipolar charge transport and efficient electroluminescence in an organic light-emitting transistor (OLET) with external quantum and luminous efficiencies as high as 0.63% and 5 cdA(-1), respectively, which are among the best reported for OLETs. The findings show that "smart" fluorination is a powerful tool to fine-tune the stability and performance of linearly conjugated small molecules for organic optoelectronics.

Koskin I.P. , Becker C.S. , Sonina A.A. , Trukhanov V.A. , Shumilov N.A. , Kuimov A.D. , Zhuravleva Y.S. , Kiseleva Y.O. , Shundrina I.K. , Sherin P.S. , Paraschuk D.Y. , Kazantsev M.S.
Selectively Fluorinated Furan-Phenylene Co-Oligomers Pave the Way to Bright Ambipolar Light-Emitting Electronic Devices
Advanced Functional Materials. 2021. V.31. N48. 2104638 . DOI: 10.1002/adfm.202104638 WOS Scopus РИНЦ

Web of science	WOS:000689696900001
Scopus	2-s2.0-85113685531
Elibrary	47014879
OpenAlex	W3198867301