Self-assembly of organic channel/polymer dielectric layer in solution process for low-voltage thin-film transistors

Ji Hoon Park, Kwang H. Lee, Sung Jin Mun, Gunwoo Ko, Seung Jin Heo, Jae Hoon Kim, Eugene Kim, Seongil Im

Research output: Contribution to journalArticle

22 Citations (Scopus)


We report on the solution-processed thin-film transistors (TFTs) fabricated by the vertical flowing of the viscous 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-pentacene) and isotatic (i-) poly-(methyl methacrylate) (PMMA) blend. According to the optical-absorption and X-ray diffraction spectra, the solution-processed film appeared self-assembled with TIPS-pentacene (up) and i-PMMA dielectric (down) layers on substrates. As fabricated on a highly capacitive 100 nm-thick AlOx dielectric, our device displayed a high mobility of 0.34 cm2/V s, a low operation voltage of -15 V, and little hysteresis.

Original languageEnglish
Pages (from-to)1688-1692
Number of pages5
JournalOrganic Electronics
Issue number10
Publication statusPublished - 2010 Oct


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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