Flexible high mobility pentacene transistor with high-k/low-k double polymer dielectric layer operating at-5V

Lee, Kwang H.; Lee, Kimoon; Oh, Min Suk; Choi, Jeong-M.; Im, Seongil; Jang, Sungjin; Kim, Eugene

doi:10.1016/j.orgel.2008.09.005

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Flexible high mobility pentacene transistor with high-k/low-k double polymer dielectric layer operating at-5V

Lee, Kwang H.;
Lee, Kimoon;
Oh, Min Suk;
Choi, Jeong-M.;
Im, Seongil;
... Kim, Eugene;
외 1명

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39

초록

We report on the fabrication of pentacene-based thin-film transistors (TFTs) with a 230 nm-thick double polymer dielectric composed of 30 nm-thin low-k poly-4-vinyphenol (PVP) and 200 nm-thick high-k poly(vinylidene fluoride/trifluoroethylene) [P(VDF-TrFE)] dielectric on polyethersulfone (PES) films. Our 230 nm-thick double (high-k/low-k) polymer showed a good dielectric strength of similar to 2 MV/cm, a high capacitance of 26 nF/cm(2) with k = similar to 7. Based on this double polymer dielectric, our flexible pentacene TFT displayed a high saturation mobility of 1.22 cm(2)/V s, a threshold voltage of -2.5 V, and on/off ratio of 10(3) stably operating under -5V. (C) 2008 Elsevier B.V. All rights reserved.

키워드

Organic thin-film transistor; Pentacene; Low voltage; Polymer dielectric; High mobility; Flexible; VOLTAGE ORGANIC TRANSISTORS; DISPLAYS

제목: Flexible high mobility pentacene transistor with high-k/low-k double polymer dielectric layer operating at-5V

저자: Lee, Kwang H.; Lee, Kimoon; Oh, Min Suk; Choi, Jeong-M.; Im, Seongil; Jang, Sungjin; Kim, Eugene

DOI: 10.1016/j.orgel.2008.09.005

발행일: 2009-02

유형: Article

저널명: Organic Electronics

권: 10

호: 1

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