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Flexible organic thin-film transistors using single-walled carbon nanotubes as an activated channel

Authors
Kwon, Jae-HongShin, Sang-IlChung, Myung-HoDong, Ki-YoungPak, James JunghoJu, Byeong-Kwon
Issue Date
1-9월-2010
Publisher
ELSEVIER SCIENCE SA
Keywords
Flexible organic thin-film transistors; Single-walled carbon nanotubes; Pentacene; Cross-linked poly-4-vinylphenol; Polyethersulphone
Citation
THIN SOLID FILMS, v.518, no.22, pp.6168 - 6173
Indexed
SCIE
SCOPUS
Journal Title
THIN SOLID FILMS
Volume
518
Number
22
Start Page
6168
End Page
6173
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/115714
DOI
10.1016/j.tsf.2010.04.052
ISSN
0040-6090
Abstract
We report on the fabrication of organic thin-film transistors (OTFTs) with a spun cross linked poly-4-vinylphenol (PVP) dielectric on a polyethersulphone (PES) flexible substrate. To improve the electrical performance of OTFTs, we employed a random single-walled carbon nanotubes (SWNTs) network as a carrier transfer underlay without sacrificing the flexibility of the TFTs. The random SWNTs showed that they can act as a semiconducting channel and conduction path to shorten the channel length in our TFTs. The flexible thin-film transistors (TFTs) with a random SWNTs/pentacene bilayer as an active channel exhibited an improved saturation field effect mobility (mu(sat)) of 2.6 x 10(-1) cm(2)/Vs compared to that of TFTs without the SWNTs underlay, while creating only a minor reduction of the current on/off ratio. (C) 2010 Elsevier B.V. All rights reserved.
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공과대학 (전기전자공학부)
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