Anisotropic mobility in large grain size solution processed organic semiconductor thin films
- 11 February 2008
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 92 (6) , 063302
- https://doi.org/10.1063/1.2839394
Abstract
The hollow pen method for writing thin films of materials from solution is utilized to depositfilms of 6,13-bis(tri-isopropylsilylethynyl) pentacene (TIPS pentacene) onto Si O 2 surfaces with pre-patterned source/drain gold contacts. We demonstrate that large domains are obtained for TIPS pentacene filmsdeposited from 0.5 – 4.0 wt % solutions with toluene. Crystalline grains with (001) orientation are observed to grow with sizes that can exceed 1 mm along the writing direction. A preferred azimuthal orientation is also selected by the process, resulting in anisotropicfield effect transistormobility in the films.Keywords
This publication has 5 references indexed in Scilit:
- Anisotropy of transient photoconductivity in functionalized pentacene single crystalsApplied Physics Letters, 2006
- Organic Field-Effect Transistors from Solution-Deposited Functionalized Acenes with Mobilities as High as 1 cm2/V·sJournal of the American Chemical Society, 2005
- The path to ubiquitous and low-cost organic electronic appliances on plasticNature, 2004
- Organic Thin Film Transistors for Large Area ElectronicsAdvanced Materials, 2002
- Functionalized Pentacene: Improved Electronic Properties from Control of Solid-State OrderJournal of the American Chemical Society, 2001