Periodic Array of Polyelectrolyte-Gated Organic Transistors from Electrospun Poly(3-hexylthiophene) Nanofibers
| Autor: | Hyun Jong Lee, Jong J. Park, Won Gun Koh, Unyong Jeong, Ji H. Choi, Jae H. Hur, Sung W. Lee, Jeong Ho Cho, J.M. Myoung |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Gate dielectric Bioengineering Nanotechnology General Chemistry Condensed Matter Physics Polyelectrolyte Electrospinning Organic semiconductor Nanofiber Polymer substrate Optoelectronics General Materials Science Field-effect transistor business Layer (electronics) |
| Zdroj: | Nano Letters. 10:347-351 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/nl903722z |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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