Novel soluble pentacene and anthradithiophene derivatives for organic thin-film transistors

Choongik Kim, Peng Yi Huang, Jhe Wei Jhuang, Ming Chou Chen*, Jia Chong Ho, Tarng Shiang Hu, Jing Yi Yan, Liang Hsiang Chen, Gene Hsiang Lee, Antonio Facchetti, Tobin J. Marks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Four new solution-processable pentacene- (PEN) and anthradithiophene- (ADT) based organic semiconductors bearing two phenylethynyl (PE-) or triethylsilylphenylethynyl (TESPE-) substituents have been synthesized, characterized, and incorporated in thin-film transistors (TFTs). The molecular structures of these four materials have been determined by single-crystal X-ray diffraction. Thin films of all four compounds have been fabricated via drop-casting and exhibited p-channel OTFT transport with hole mobilities as high as ∼0.01 cm2/V s. Compared to PEN derivatives, ADT-based compounds exhibited superior device performance and photooxidative stability in ambient. The film morphologies and microstructures of these compounds have been characterized by optical microscopy and X-ray diffraction to rationalize device performance trends.

Original languageEnglish (US)
Pages (from-to)1363-1375
Number of pages13
JournalOrganic Electronics
Volume11
Issue number8
DOIs
StatePublished - Aug 2010

Keywords

  • Anthradithiophene
  • Organic semiconductor
  • Organic thin-film transistor
  • Pentacene
  • Solution-process

ASJC Scopus subject areas

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

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