Flexible low-voltage organic thin-film transistors enabled by low-temperature, ambient solution-processable inorganic/organic hybrid gate dielectrics

Young Geun Ha, Sunho Jeong, Jinsong Wu, Myung Gil Kim, Vinayak P. Dravid, Antonio Facchetti, Tobin J Marks

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

We report here on the design, synthesis, processing, and dielectric properties of novel cross-linked inorganic/organic hybrid blend (CHB) dielectric films which enable low-voltage organic thin-film transistor (OTFT) operation. CHB thin films (20-43 nm thick) are readily fabricated by spin-coating a zirconium chloride precursor plus an α,ω-disilylalkane cross-linker solution in ambient conditions, followed by curing at low temperatures (∼150 °C). The very smooth CHB dielectrics exhibit excellent insulating properties (leakage current densities ∼10-7 A/cm2), tunable capacitance (95-365 nF/cm2), and high dielectric constants (5.0-10.2). OTFTs fabricated with pentacene as the organic semiconductor function well at low voltages (

Original languageEnglish
Pages (from-to)17426-17434
Number of pages9
JournalJournal of the American Chemical Society
Volume132
Issue number49
DOIs
Publication statusPublished - Dec 15 2010

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Semiconductors
Gate dielectrics
Thin film transistors
Temperature
Semiconducting organic compounds
Dielectric films
Spin coating
Electric potential
Zirconium
Leakage currents
Dielectric properties
Curing
Permittivity
Current density
Capacitance
Thin films
Processing
zirconium chloride
pentacene

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Flexible low-voltage organic thin-film transistors enabled by low-temperature, ambient solution-processable inorganic/organic hybrid gate dielectrics. / Ha, Young Geun; Jeong, Sunho; Wu, Jinsong; Kim, Myung Gil; Dravid, Vinayak P.; Facchetti, Antonio; Marks, Tobin J.

In: Journal of the American Chemical Society, Vol. 132, No. 49, 15.12.2010, p. 17426-17434.

Research output: Contribution to journalArticle

Ha, Young Geun ; Jeong, Sunho ; Wu, Jinsong ; Kim, Myung Gil ; Dravid, Vinayak P. ; Facchetti, Antonio ; Marks, Tobin J. / Flexible low-voltage organic thin-film transistors enabled by low-temperature, ambient solution-processable inorganic/organic hybrid gate dielectrics. In: Journal of the American Chemical Society. 2010 ; Vol. 132, No. 49. pp. 17426-17434.
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