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Record Charge Carrier Mobility in a Room‐Temperature Discotic Liquid‐Crystalline Derivative of Hexabenzocoronene
Author(s) -
Craats A. M. van de,
Warman J. M.,
Fechtenkötter A.,
Brand J. D.,
Harbison M. A.,
Müllen K.
Publication year - 1999
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199912)11:17<1469::aid-adma1469>3.0.co;2-k
Subject(s) - discotic liquid crystal , materials science , mesogen , crystallinity , electron mobility , alkyl , charge (physics) , derivative (finance) , charge carrier , liquid crystalline , chemical physics , liquid crystal , optoelectronics , organic chemistry , composite material , physics , quantum mechanics , financial economics , economics , chemistry
The largest charge mobility yet for discotic materials has been achieved with a series of hexaalkyl‐substituted hexabenzocoronene derivatives (see Figure). When the mesogenic alkyl groups are coupled to the aromatic core via paraphenylene moieties both the high mobility and liquid‐crystallinity are retained even at room temperature, making the materials particularly attractive candidates for the conducting layer in electronic devices.