Solution-processable pentacene microcrystal arrays for high performance organic field-effect transistors

Wi Hyoung Lee, Do Hwan Kim, Yunseok Jang, Jeong Ho Cho, Minkyu Hwang, Yeong Don Park, Yong Hoon Kim, Jeong In Han, Kilwon Cho

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131 Citations (Scopus)

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 cm2/V s, which results from the directed organization of the π-conjugated molecules.

Original languageEnglish
Article number132106
JournalApplied Physics Letters
Volume90
Issue number13
DOIs
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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    Lee, W. H., Kim, D. H., Jang, Y., Cho, J. H., Hwang, M., Park, Y. D., Kim, Y. H., Han, J. I., & Cho, K. (2007). Solution-processable pentacene microcrystal arrays for high performance organic field-effect transistors. Applied Physics Letters, 90(13), [132106]. https://doi.org/10.1063/1.2717087