Periodic array of polyelectrolyte-gated organic transistors from electrospun poly(3-hexylthiophene) nanofibers

Sung W. Lee, Hyun J. Lee, Ji H. Choi, Won-Gun Koh, Jae Min Myoung, Jae H. Hur, Jong J. Park, Jeong Ho Cho, Unyong Jeong

Research output: Contribution to journalArticle

157 Citations (Scopus)

Abstract

High-performance organic field-effect transistors (OFETs) based on polyelectrolyte gate dielectric and electrospun poly(3hexylthiophene) (P3HT) nanofibers were fabricated on a flexible polymer substrate. The use of UV-crossIinked hydrogel including ionic liquids for the insulating layer enabled fast and large-area fabrication of transistor arrays. The P3HT nanofibers were directly deposited on the methacrylated polymer substrate. During UV irradiation through a patterned mask, the methacrylate groups formed covalent bonds with the patterned polyelectrolyte dielectric layer, which provides mechanical stability to the devices. The OFETs operate at voltages of less than 2 V. The average field-effect mobility and on/off ratio were ∼2 cm2/(Vs) and 105, respectively.

Original languageEnglish
Pages (from-to)347-351
Number of pages5
JournalNano letters
Volume10
Issue number1
DOIs
Publication statusPublished - 2010 Jan 13

Fingerprint

Organic field effect transistors
Nanofibers
Polyelectrolytes
Polymers
Transistors
transistors
field effect transistors
Ionic Liquids
Covalent bonds
Methacrylates
Mechanical stability
Hydrogel
Gate dielectrics
covalent bonds
polymers
Substrates
Ionic liquids
Hydrogels
Masks
masks

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Lee, Sung W. ; Lee, Hyun J. ; Choi, Ji H. ; Koh, Won-Gun ; Myoung, Jae Min ; Hur, Jae H. ; Park, Jong J. ; Cho, Jeong Ho ; Jeong, Unyong. / Periodic array of polyelectrolyte-gated organic transistors from electrospun poly(3-hexylthiophene) nanofibers. In: Nano letters. 2010 ; Vol. 10, No. 1. pp. 347-351.
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Periodic array of polyelectrolyte-gated organic transistors from electrospun poly(3-hexylthiophene) nanofibers. / Lee, Sung W.; Lee, Hyun J.; Choi, Ji H.; Koh, Won-Gun; Myoung, Jae Min; Hur, Jae H.; Park, Jong J.; Cho, Jeong Ho; Jeong, Unyong.

In: Nano letters, Vol. 10, No. 1, 13.01.2010, p. 347-351.

Research output: Contribution to journalArticle

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AU - Myoung, Jae Min

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