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Issue 13, 2015
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A conductive liquid crystal via facile doping of an n-type benzodifurandione derivative

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Abstract

Two n-type molecular organic semiconductors (TI-BDF1 and TI-BDF2) consisting of thiophene-substituted indolin-2-one (TI) and benzodifurandione (BDF) with different branched side-chains have been synthesized to study the effect of molecular structure on molecular order, liquid crystal (LC) properties, and charge-transport. By tuning the branching point of the side-chains, TI-BDF2 shows a preferable edge-on π-face orientation and a high degree of liquid crystallinity, resulting in 4 orders of magnitude higher electron mobility than that of TI-BDF1. Subsequent n-doping of TI-BDF2 thin film with a thermally stable phosphonium salt affords a high electrical conductivity of 0.4 S cm−1.

Graphical abstract: A conductive liquid crystal via facile doping of an n-type benzodifurandione derivative

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Article information


Submitted
06 Jan 2015
Accepted
13 Feb 2015
First published
16 Feb 2015

J. Mater. Chem. A, 2015,3, 6929-6934
Article type
Paper
Author version available

A conductive liquid crystal via facile doping of an n-type benzodifurandione derivative

B. Zhao, C. Li, S. Liu, J. J. Richards, C. Chueh, F. Ding, L. D. Pozzo, X. Li and A. K.-Y. Jen, J. Mater. Chem. A, 2015, 3, 6929
DOI: 10.1039/C5TA00115C

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