The authors would like to acknowledge Avecia Ltd., EPSRC and the UK DTI for financial support, Dr. Raoul Schroeder, Dr. Leszek Majewski, and Dr. Martin Grell for helpful discussions, Dr. Madeleine Helliwell for X-ray crystallography and Prof. John Goodby for assistance with mesophase determination. Supporting Information is available online from Wiley InterScience or from the author.
Melt-Processing of Conjugated Liquid Crystals: A Simple Route to Fabricate OFETs†
Article first published online: 9 MAR 2007
Copyright © 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 19, Issue 6, pages 805–809, March, 2007
How to Cite
Maunoury, J. C., Howse, J. R. and Turner, M. L. (2007), Melt-Processing of Conjugated Liquid Crystals: A Simple Route to Fabricate OFETs. Adv. Mater., 19: 805–809. doi: 10.1002/adma.200602859
- Issue published online: 9 MAR 2007
- Article first published online: 9 MAR 2007
- Manuscript Revised: 24 JAN 2007
- Manuscript Received: 13 DEC 2006
- Avecia Ltd.
- Field-effect transistors, organic;
- Liquid crystals, nematic;
- Liquid crystals, smectic;
- Semiconductors, organic
Melt-processing of 5,5′-bis(4-hexylphenyl)-2,2′-bithiophene leads to a favorable morphology of the conjugated liquid crystal in the channel of an OFET (see figure) and a fivefold improvement of the mobility over that found for conventional devices fabricated by evaporation. This process does not require solvents or vacuum-deposition processes.