Low-voltage and high-field-effect mobility organic transistors with a polymer insulator

Yunseok Jang; Do Hwan Kim; Yeong Don Park; Jeong Ho Cho; Minkyu Hwang; Kilwon Cho

doi:10.1063/1.2173633

Low-voltage and high-field-effect mobility organic transistors with a polymer insulator

Yunseok Jang, Do Hwan Kim, Yeong Don Park, Jeong Ho Cho, Minkyu Hwang, Kilwon Cho

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article

124 Citations (Scopus)

Abstract

A key issue in research into organic thin-film transistors (OTFTs) is low-voltage operation. In this study, we fabricated a pentacene thin-film transistor with an ultrathin layer of polyvinyl alcohol (9 nm) as a gate insulator, and obtained a device with excellent electrical characteristics at low operating voltages (below 2 V). This device was found to have a field-effect mobility of 1.1 cm2 V s, a threshold voltage of -0.98 V, an exceptionally low subthreshold slope of 180 mV /decade, and an on/off current ratio of 106. This favorable combination of properties means that such OTFTs can be operated successfully at voltages below 2 V.

Original language	English
Article number	072101
Journal	Applied Physics Letters
Volume	88
Issue number	7
DOIs	https://doi.org/10.1063/1.2173633
Publication status	Published - 2006

Bibliographical note

Funding Information:
This work was supported by the National Research Laboratory Program and ERC Program (R11-2003-006-03005-0) of the MOST, a grant (No. F0004022) from the Information Display R&D Center under the 21st Century Frontier R&D Program, and a grant (No. RT104-01-04) from the Regional Technology Innovation Program of the MOCIE, and the BK21 Program of the Ministry of Education and Human Resources Development of Korea.

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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title = "Low-voltage and high-field-effect mobility organic transistors with a polymer insulator",

abstract = "A key issue in research into organic thin-film transistors (OTFTs) is low-voltage operation. In this study, we fabricated a pentacene thin-film transistor with an ultrathin layer of polyvinyl alcohol (9 nm) as a gate insulator, and obtained a device with excellent electrical characteristics at low operating voltages (below 2 V). This device was found to have a field-effect mobility of 1.1 cm2 V s, a threshold voltage of -0.98 V, an exceptionally low subthreshold slope of 180 mV /decade, and an on/off current ratio of 106. This favorable combination of properties means that such OTFTs can be operated successfully at voltages below 2 V.",

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AU - Jang, Yunseok

AU - Kim, Do Hwan

AU - Park, Yeong Don

AU - Cho, Jeong Ho

AU - Hwang, Minkyu

AU - Cho, Kilwon

N1 - Funding Information: This work was supported by the National Research Laboratory Program and ERC Program (R11-2003-006-03005-0) of the MOST, a grant (No. F0004022) from the Information Display R&D Center under the 21st Century Frontier R&D Program, and a grant (No. RT104-01-04) from the Regional Technology Innovation Program of the MOCIE, and the BK21 Program of the Ministry of Education and Human Resources Development of Korea.

PY - 2006

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AB - A key issue in research into organic thin-film transistors (OTFTs) is low-voltage operation. In this study, we fabricated a pentacene thin-film transistor with an ultrathin layer of polyvinyl alcohol (9 nm) as a gate insulator, and obtained a device with excellent electrical characteristics at low operating voltages (below 2 V). This device was found to have a field-effect mobility of 1.1 cm2 V s, a threshold voltage of -0.98 V, an exceptionally low subthreshold slope of 180 mV /decade, and an on/off current ratio of 106. This favorable combination of properties means that such OTFTs can be operated successfully at voltages below 2 V.

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