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

Sung W. Lee; Hyun J. Lee; Ji H. Choi; Won G. Koh; Jae M. Myoung; Jae H. Hur; Jong J. Park; Jeong H. Cho; Unyong Jeong

doi:10.1021/nl903722z

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

Sung W. Lee, Hyun J. Lee, Ji H. Choi, Won G. Koh, Jae M. Myoung, Jae H. Hur, Jong J. Park, Jeong H. Cho, Unyong Jeong

Research output: Contribution to journal › Article › peer-review

184 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 language	English
Pages (from-to)	347-351
Number of pages	5
Journal	Nano letters
Volume	10
Issue number	1
DOIs	https://doi.org/10.1021/nl903722z
Publication status	Published - 2010 Jan 13

All Science Journal Classification (ASJC) codes

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

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10.1021/nl903722z

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

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.",

author = "Lee, {Sung W.} and Lee, {Hyun J.} and Choi, {Ji H.} and Koh, {Won G.} and Myoung, {Jae M.} and Hur, {Jae H.} and Park, {Jong J.} and Cho, {Jeong H.} and Unyong Jeong",

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AU - Lee, Sung W.

AU - Lee, Hyun J.

AU - Choi, Ji H.

AU - Koh, Won G.

AU - Myoung, Jae M.

AU - Hur, Jae H.

AU - Park, Jong J.

AU - Cho, Jeong H.

AU - Jeong, Unyong

PY - 2010/1/13

Y1 - 2010/1/13

N2 - 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.

AB - 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.

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

Abstract

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