Research output: Contribution to journal › Article › peer-review
Highly bendable luminescent semiconducting organic single crystal. / Kazantsev, Maxim S.; Konstantinov, Vladislav G.; Dominskiy, Dmitry I. et al.
In: Synthetic Metals, Vol. 232, 01.10.2017, p. 60-65.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Highly bendable luminescent semiconducting organic single crystal
AU - Kazantsev, Maxim S.
AU - Konstantinov, Vladislav G.
AU - Dominskiy, Dmitry I.
AU - Bruevich, Vladimir V.
AU - Postnikov, Valery A.
AU - Luponosov, Yuriy N.
AU - Tafeenko, Victor A.
AU - Surin, Nikolay M.
AU - Ponomarenko, Sergey A.
AU - Paraschuk, Dmitry Yu
PY - 2017/10/1
Y1 - 2017/10/1
N2 - 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 ∼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 cm2/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.
AB - 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 ∼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 cm2/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.
KW - Mechanical flexibility
KW - Organic field-effect transistor
KW - Photoluminescence
KW - Single crystals
KW - Thiophene/phenylene co-oligomer
KW - LASERS
KW - STABILITY
KW - THIOPHENE/PHENYLENE CO-OLIGOMERS
KW - THIN-FILM TRANSISTORS
KW - FIELD-EFFECT TRANSISTORS
UR - http://www.scopus.com/inward/record.url?scp=85026891990&partnerID=8YFLogxK
U2 - 10.1016/j.synthmet.2017.07.019
DO - 10.1016/j.synthmet.2017.07.019
M3 - Article
AN - SCOPUS:85026891990
VL - 232
SP - 60
EP - 65
JO - Synthetic Metals
JF - Synthetic Metals
SN - 0379-6779
ER -
ID: 9965876