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(3-hexylthiophene) (P3HT) nanofibers were fabricated on a flexible polymer substrate. The use of UV-crosslinked 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 approximately 2 cm(2)/(Vs) and 10(5), respectively.
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, 134 Shinchon-dong, Seoul, Korea.
authors.forename: Sung W
authors.initials: SW
authors.lastname: Lee
authors.forename: Hyun J
authors.initials: HJ
authors.lastname: Lee
authors.forename: Ji H
authors.initials: JH
authors.lastname: Choi
authors.forename: Won G
authors.initials: WG
authors.lastname: Koh
authors.forename: Jae M
authors.initials: JM
authors.lastname: Myoung
authors.forename: Jae H
authors.initials: JH
authors.lastname: Hur
authors.forename: Jong J
authors.initials: JJ
authors.lastname: Park
authors.forename: Jeong H
authors.initials: JH
authors.lastname: Cho
authors.forename: Unyong
authors.initials: U
authors.lastname: Jeong