Ultraviolet alignment effect and properties of organic thin film transistors based on soluble triisopropylsilyl-pentacene with photoreactive polymer

Ji Yun Chun, Jin Woo Han, Jeong Min Han, Dae Shik Seo

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Abstract

We investigated the electrical properties of triisopropylsilyl (TIPS)-pentacene organic thin film transistors (OTFTs) fabricated with a photoreactive polymer. The OTFTs fabricated with annealing of the gate dielectric layer had a field-effect mobility of up to 0.06cm2 V -1 s-1, while those treated with ultraviolet (UV) irradiation showed a field effect mobility of 0.12cm2 V-1 s-1. The large improvement in TIPS-pentacene OTFT performance using a photoreactive dielectric layer is probably due to the enhanced alignment of TIPS-pentacene molecules and improved dielectric properties.

Original languageEnglish
Article number010206
JournalJapanese journal of applied physics
Volume48
Issue number1
DOIs
Publication statusPublished - 2009 Jan 20

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All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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