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

Research output: Contribution to journalArticle

2 Citations (Scopus)


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
Issue number1
Publication statusPublished - 2009 Jan 20


All Science Journal Classification (ASJC) codes

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

Cite this