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Journal ArticleDOI

Stacked pentacene layer organic thin-film transistors with improved characteristics

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TLDR
In this article, photolithographically defined organic thin-film transistors (OTFTs) with improved field-effect mobility and sub-threshold slope were fabricated using two layers of pentacene deposited at different substrate temperatures.
Abstract
Using two layers of pentacene deposited at different substrate temperatures as the active material, we have fabricated photolithographically defined organic thin-film transistors (OTFTs) with improved field-effect mobility and subthreshold slope. These devices use photolithographically defined gold source and drain electrodes and octadecyltrichlorosilane-treated silicon dioxide gate dielectric. The devices have field-effect mobility as large as 1.5 cm/sup 2//V-s, on/off current ratio larger than 10/sup 8/, near zero threshold voltage, and subthreshold slope less than 1.6 V per decade. To our knowledge, this is the largest field-effect mobility and smallest subthreshold slope yet reported for any organic transistor, and the first time both of these important characteristics have been obtained for a single device.

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Citations
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Absence of phase transformation of dense anthracene from Raman scattering

TL;DR: In this article, the high pressure vibrational properties of anthracene were investigated by using Raman scattering techniques in diamond anvil cells up to 7.1 GPa at room temperature.
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Study of highly selective wet gate recess process for Al0.25Ga0.75As/GaAs based pseudomorphic high electron mobility transistors

TL;DR: In this paper, the selectivity of citric acid buffer based etchant was investigated for the gate recess process of a double δ doped Al0.25Ga0.75As layer.
Book ChapterDOI

Introduction to Organic Semiconductors, Transistors and Conductors

Ajay Virkar
TL;DR: The discovery of conducting polymers was made by physicist Professor Alan Heeger, and chemists Professor Alan MacDiarmid and Professor Hideki Shirakawa for which the three were awarded the Nobel Prize in chemistry in 2000 as mentioned in this paper.

Deposition of indigo thin films by Langmuir-Schaefer technique

Woojae Lim
TL;DR: In this article, Abbreviations and acronyms are used to describe the relationship between nouns and acronyms in terms of the authorship of nouns.
References
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Journal ArticleDOI

Organic transistors: two-dimensional transport and improved electrical characteristics.

TL;DR: The thiophene oligomer α-hexathienylene (α-6T) has been successfully used as the active semiconducting material in thin-film transistors and optimized methods of device fabrication have resulted in high field-effect mobilities and on/off current ratios of > 106.
Journal ArticleDOI

Pentacene organic thin-film transistors-molecular ordering and mobility

TL;DR: Pentacene-based organic thin-film transistors (TFT's) with field effect mobility as large as 0.7 cm/sup 2/V/spl middot/s and on/off current ratio larger than 10/sup 8/ have been fabricated as mentioned in this paper.
Journal ArticleDOI

Molecular beam deposited thin films of pentacene for organic field effect transistor applications

TL;DR: In this article, a maximum field effect mobility of 0.038 cm−2'V−1'1's−1 is reported for devices incorporating pentacene films deposited at room temperature.
Journal ArticleDOI

Pentacene-based organic thin-film transistors

TL;DR: In this paper, the authors show that the large sub-threshold slope typically observed is not an intrinsic property of the organic semiconducting material and that devices with sub-reshold slope similar to amorphous silicon devices are possible.
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