Solution-processable pentacene microcrystal arrays for high performance organic field-effect transistors
Open Access
- 26 March 2007
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 90 (13) , 132106
- https://doi.org/10.1063/1.2717087
Abstract
The authors report the fabrication of one-dimensional crystal arrays of triisopropylsilylethynyl pentacene (TIPS PEN) via simple drop casting on a tilted substrate. By pinning a solution droplet on the tilted substrate, an array of ribbon-shaped crystals aligned in the tilted direction was formed on the substrate. X-ray diffraction analysis revealed that these crystals were oriented in the crystal growth direction. A thin film transistor based on such an array of TIPS PEN crystals was found to have a high field-effect mobility of 0.3 cm 2 ∕ V s , which results from the directed organization of the π -conjugated molecules.Keywords
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