Flexible organic thin-film transistors for photodetectors

Jae Hong Kwon, Sang Li Shin, Chang Hoon Kim, In Kyu You, Gyeong Ik Cho, Byeong Kwon Ju

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


In this paper, we report on organic thin-film transistors (OTFTs) fabricated on plastic substrates by using 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-pentacene) as an organic semiconductor and cross-linked poly-4-vinylphenol as the gate dielectric. From these devices, we obtained exemplary I-V characteristics in the dark. We observed that the TIPS-pentacene-based OTFTs showed an efficient photo-current response under illumination with a halogen lamp. From these electrical properties, we found that the threshold voltage and the on-current were about -6 V and 6.65 x 10 -7 A, respectively, in the dark. However, after illumination, the threshold voltage and the on-current were 3.9 V and 1.32 x 10-6 A, respectively.

Original languageEnglish
Pages (from-to)72-75
Number of pages4
JournalJournal of the Korean Physical Society
Issue number1
Publication statusPublished - 2009 Jul


  • 6,13-bis(triisopropylsilylethynyl)pentacene
  • Cross- Linked poly-4-vinylphenol
  • Organic thin-film transistor
  • Photodetector

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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