Flexible Transistors with Low Temperature Curable Polyimide Gate Insulator

Flexible, high-performance, and low-cost organic-thin-film-transistors (OTFTs) can be fabricated utilizing polyethylene terephthalate (PET) as a substrate material and low-temperature curable polyimide (PI) as a gate insulator. In this paper, top-contact OTFTs with a PET/Au/polyimide/pentacene/Au st...

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Bibliographic Details
Published in:Journal of Photopolymer Science and Technology 2012/06/26, Vol.25(3), pp.381-383
Main Authors: Ohuchi, Hirokuni, Takayanagi, Yutaro, Yano, Hiroaki, Duan, Zongfau, Okukawa, Takanori, Yanagi, Yuichiro, Yoshida, Akira, Nishioka, Yasushiro
Format: Article
Language:English
Subjects:
Gates
Gold
Insulators
Organic Thin Film Transistor
Pentacene
Photopolymers
Polyethylene terephthalate
Polyethylene terephthalates
Polyimide
Polyimide resins
Semiconductor devices
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Summary:Flexible, high-performance, and low-cost organic-thin-film-transistors (OTFTs) can be fabricated utilizing polyethylene terephthalate (PET) as a substrate material and low-temperature curable polyimide (PI) as a gate insulator. In this paper, top-contact OTFTs with a PET/Au/polyimide/pentacene/Au structure were fabricated and evaluated. Here, a low temperature (200 °C)-curable PI was employed. The influences of pentacene purity on the OTFT performance were also investigated. As a result, flexible OTFTs were successfully fabricated, and the mobility of the OTFT with the 99.9%-purity pentacene was 0.011 cm2/Vs, while the mobility of the OTFT with the 99.995%-purity pentacene increased up to 0.1 cm2/Vs.
ISSN:0914-9244
1349-6336
DOI:10.2494/photopolymer.25.381