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

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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
Pages (from-to)1363-1375
Number of pages13
JournalOrganic Electronics
Issue number8
StatePublished - Aug 2010


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


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