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Proceedings Paper

New liquid crystalline solution processible organic semiconductors and their performance in field effect transistors
Author(s): Maxim N. Shkunov; Weimin Zhang; David Graham; David Sparrowe; Martin Heeney; Mark Giles; Steve Tierney; Clare Bailey; Iain McCulloch; Theo Kreouzis
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Paper Abstract

New polymerisable liquid crystalline organic semiconductors based on small molecule "reactive mesogens" are reported. These molecules, comprising p-conjugated cores with reactive endgroups, were designed, synthesised then solution processed into thin films. The mesogenic morphology was attained thermally and fixed through a post fabrication photopolymerisation reaction. Thermal, optical and electrical properties of these thin films were characterised to reveal details of morphology and molecular orientation. Both bulk (time-of-flight) and surface (field-effect) charge carrier mobilities were measured. The relationship between molecular structure, corresponding macrostructure processability and charge mobility is discussed. Fabrication and characterisation of field-effect transistors based on reactive mesogens are presented and discussed.

Paper Details

Date Published: 17 November 2003
PDF: 12 pages
Proc. SPIE 5217, Organic Field Effect Transistors II, (17 November 2003); doi: 10.1117/12.505831
Show Author Affiliations
Maxim N. Shkunov, Merck Chemicals (United Kingdom)
Weimin Zhang, Merck Chemicals (United Kingdom)
David Graham, Merck Chemicals (United Kingdom)
David Sparrowe, Merck Chemicals (United Kingdom)
Martin Heeney, Merck Chemicals (United Kingdom)
Mark Giles, Merck Chemicals (United Kingdom)
Steve Tierney, Merck Chemicals (United Kingdom)
Clare Bailey, Merck Chemicals (United Kingdom)
Iain McCulloch, Merck Chemicals (United Kingdom)
Theo Kreouzis, Univ. of London (United Kingdom)

Published in SPIE Proceedings Vol. 5217:
Organic Field Effect Transistors II
Christos D. Dimitrakopoulos, Editor(s)

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