Annealing-free high-mobility diketopyrrolopyrrole-benzodithiophene copolymer for organic thin film transistors

Dae Hee Lee, Jicheol Shin, Tae Wan Lee, Min Ju Cho, Dong Hoon Choi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Diketopyrrolopyrrole (DPP)-based conjugated polymer (P(DPP-BDT)) containing benzodithiophene (BDT) was successfully synthesized via Stille coupling reaction. The synthesized polymer shows good solubility in common organic solvents and good selffilm- forming properties. The electrical properties of the polymer were evaluated in organic thin film transistors (OTFTs). The TFT made of pristine P(DPP-BDT) film exhibits good carrier mobility of 0.38∼0.40 cm2 V-1 s-1 (Ion/off = 106, Vth =-9 V), which is close to the mobility of TFT made of the thermally annealed film.

Original languageEnglish
Pages (from-to)97-103
Number of pages7
JournalMolecular Crystals and Liquid Crystals
Volume598
Issue number1
DOIs
Publication statusPublished - 2014 Jul 24

Keywords

  • Benzodithiophene
  • Conjugated polymer
  • Diketopyrrolopyrrole
  • Mobility
  • Organic thin film transistor
  • Semiconductor

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Science(all)

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