Synthesis, luminescence and charge transport properties of furan/phenylene co-oligomers: The study of conjugation length effect

Synthesis, luminescence and charge transport properties of furan/phenylene co-oligomers: The study of conjugation length effect Full article

Journal

Organic Electronics
ISSN: 1566-1199 , E-ISSN: 1878-5530

Output data

Year: 2018, Volume: 56, Pages: 208-215 Pages count : 8 DOI: 10.1016/j.orgel.2018.01.010

Tags

Furan/phenylene Co-Oligomers; Highly-emissive single crystal; Luminescent semiconductor; Charge carrier mobility; Conjugation length effect

Authors

Kazantsev Maxim S. ^1,2 , Beloborodova Alina A. ^1,2 , Kuimov Anatoly D. ^1,2 , Koskin Igor P. ^1,2 , Frantseva Ekaterina S. ^1,2 , Rybalova Tatyana V. ^1,2 , Shundrina Inna K. ^1,2 , Becker Christina S. ^1,2 , Mostovich Evgeny A. ^1,2

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

Heteroaryl-containing co-oligomers are considered among the most promising materials for organic optoelectronics. In this work we synthesized a series of linear furan/phenylene co-oligomers (FPs) with different molecular length and studied their structure, luminescence and charge transport properties. The X-ray diffraction experiments revealed the higher distortion of molecular planarity for the longer FPs which is assigned to the crystal environment effect. All FPs demonstrated stability and high photoluminescence quantum yield (PL QY) both in solution and vapor-grown single crystals. The absolute PL QY as high as 70% was demonstrated for FP6 single crystal. The top-contact top-gate organic field-effect transistors (OFETs) demonstrated virtually the same mobility similar to 0.35 cm(2)/Vs for a FPs with different conjugation chain. However the threshold voltage for the studied OFETs was demonstrated to be significantly reduced for a co-oligomer FP7 with longer conjugation chain. Thus we conclude that the increase of conjugation chain for co-oligomers does not benefit an increase of charge carrier mobility but improve the crystal/dielectric interface.

Kazantsev M.S. , Beloborodova A.A. , Kuimov A.D. , Koskin I.P. , Frantseva E.S. , Rybalova T.V. , Shundrina I.K. , Becker C.S. , Mostovich E.A.
Synthesis, luminescence and charge transport properties of furan/phenylene co-oligomers: The study of conjugation length effect
Organic Electronics. 2018. V.56. P.208-215. DOI: 10.1016/j.orgel.2018.01.010 WOS Scopus РИНЦ OpenAlex

Published print:

May 1, 2018

Web of science:	WOS:000428026000031
Scopus:	2-s2.0-85042115691
Elibrary:	35540213
OpenAlex:	W2792484342

DB	Citing
Web of science	26
Scopus	24
Elibrary	19
OpenAlex	27