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Organic Thin-Film Transistors with Ink-jet Printed Metal Electrodes

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Ink-jet printing technology is widely used in numerous applications. Various inks are developed for the demand of electronic devices. Ink-jet printing conductive metal nanopastes have been used in printed circuit boards and passive components. This technique provides a manufacturing method that can replace more expensive process such as lithography or metal evaporation. In this paper, we demonstrate a new method for manufacturing conductive electrodes of organic thin-film transistors (OTFTs). Adjusting ink properties and jetting performance can control the qualities of the printed nanopaste film. Curing temperature and time are also the key issues which are required for the better morphology of the film. Soluble conjugated polymers such as poly 3-hexylthiophene (P3HT) are very promising candidates for a cheap electronic device on various substrates and suitable for the applications of ink-jet printing technology. We compare the characteristics of OTFTs for the evaporated and the ink-jet printed source-drain electrodes. This approach presents a simple method for fabricating OTFT device and is suitable for a flexible display displays and circuits.
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Document Type: Research Article

Publication date: 2006-01-01

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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