Dependence of bias stress on hydrophobicity of gate insulator in solution-processed organic thin-film transistors

Wan Woo Noh, Sin Hyung Lee, Gyujeong Lee, In Ho Lee, Hea Lim Park, Min Hoi Kim, Sin Doo Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We demonstrated the effect of the hydrophobicity of a gate insulator on the bias stress in a solutionprocessed organic thin-film transistor (OTFT). Without changing the surface morphology, only the hydrophobicity of the gate insulator was systematically tailored to achieve the electrical stability of the OTFT against the bias stress. The shift of the threshold voltage (VTH) by the gate bias stress was found to decrease with increasing the hydrophobicity of the gate insulator. The shift of VTH in the optimized OTFT was as small as -1.09 V under the gate bias stress for 1000 s.

Original languageEnglish (US)
Pages (from-to)8618-8621
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume16
Issue number8
DOIs
StatePublished - Aug 2016

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Thin film transistors
Hydrophobicity
hydrophobicity
Hydrophobic and Hydrophilic Interactions
transistors
insulators
thin films
Threshold voltage
shift
Surface morphology
threshold voltage

Keywords

  • CYTOP
  • Gate bias stress
  • Hydrophobicity
  • Solution-processed organic thin-film transistors
  • Tips-pentacene

Cite this

Dependence of bias stress on hydrophobicity of gate insulator in solution-processed organic thin-film transistors. / Noh, Wan Woo; Lee, Sin Hyung; Lee, Gyujeong; Lee, In Ho; Park, Hea Lim; Kim, Min Hoi; Lee, Sin Doo.

In: Journal of Nanoscience and Nanotechnology, Vol. 16, No. 8, 08.2016, p. 8618-8621.

Research output: Contribution to journalArticle

Noh, Wan Woo ; Lee, Sin Hyung ; Lee, Gyujeong ; Lee, In Ho ; Park, Hea Lim ; Kim, Min Hoi ; Lee, Sin Doo. / Dependence of bias stress on hydrophobicity of gate insulator in solution-processed organic thin-film transistors. In: Journal of Nanoscience and Nanotechnology. 2016 ; Vol. 16, No. 8. pp. 8618-8621.
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AU - Kim, Min Hoi

AU - Lee, Sin Doo

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