Highly bendable luminescent semiconducting organic single crystal

Highly bendable luminescent semiconducting organic single crystal Full article

Journal

Synthetic Metals
ISSN: 0379-6779

Output data

Year: 2017, Volume: 232, Pages: 60-65 Pages count : 6 DOI: 10.1016/j.synthmet.2017.07.019

Tags

Thiophene/phenylene co-oligomer; Single crystals; Organic field-effect transistor; Photoluminescence; Mechanical flexibility

Authors

Kazantsev Maxim S. ^1,2 , Konstantinov Vladislav G. ^3,4 , Dominskiy Dmitry I. ⁴ , Bruevich Vladimir V. ^3,4 , Postnikov Valery A. ⁵ , Luponosov Yuriy N. ⁶ , Tafeenko Victor A. ⁷ , Surin Nikolay M. ⁶ , Ponomarenko Sergey A. ^6,7 , Paraschuk Dmitry Yu. ^3,4

Affiliations

1	(Данные Web of science) NN Vorozhtsov Novosibirsk Inst Organ Chem SB RAS, Lavrentieva 9, Novosibirsk 630090, Russia
2	(Данные Web of science) Novosibirsk State Univ, Pirogova 2, Novosibirsk 630090, Russia
3	(Данные Web of science) Lomonosov Moscow State Univ, Int Laser Ctr, Leninskie Gory 1-62, Moscow 119991, Russia
4	(Данные Web of science) Lomonosov Moscow State Univ, Fac Phys, Leninskie Gory 1-2, Moscow 119991, Russia
5	(Данные Web of science) Fed Sci Res Ctr Crystallog & Photon RAS, Shubnilcov Inst Crystallog, Leninskiy Prospect 59, Moscow 119333, Russia
6	(Данные Web of science) Enikolopov Inst Synthet Polymer Mat RAS, Profsoyuznaya 70, Moscow 117393, Russia
7	(Данные Web of science) Lomonosov Moscow State Univ, Fac Chem, Leninskie Gory 1-3, Moscow 119991, Russia

Mechanical flexibility is one of the key benefits of organic electronics and optoelectronics. Although organic single crystals show the best performance in field-effect and light-emitting transistors, they are commonly considered to be brittle. In this work, we show that organic single crystals can be flexible, luminescent and semiconducting. We grew similar to 1 cm-size single crystals of a thiophene/phenylene co-oligomer, 1,4-bis(5'-hexyl-2,2'-bithiene-5-yl)benzene, from solution and resolved their structure by x-ray analysis. The crystals were bendable with a radius down to 0.2 mm corresponding to a mechanical strain of 5%, had molecularly flat surface, showed the photoluminescence quantum yield up to 17% and charge mobility up to 0.07 cm(2)/Vs. Multiple bending cycles of the crystals did not affect their photoluminescence but resulted in minor degradation of the charge mobility. These findings indicate that organic single crystals can be a platform for flexible optoelectronic devices.

Kazantsev M.S. , Konstantinov V.G. , Dominskiy D.I. , Bruevich V.V. , Postnikov V.A. , Luponosov Y.N. , Tafeenko V.A. , Surin N.M. , Ponomarenko S.A. , Paraschuk D.Y.
Highly bendable luminescent semiconducting organic single crystal
Synthetic Metals. 2017. V.232. P.60-65. DOI: 10.1016/j.synthmet.2017.07.019 WOS Scopus РИНЦ

Published print:

Oct 1, 2017

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