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Copper Ink-Jet inks for Flexible and Plastic Electronics

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One of the greatest challenges in fabrication of flexible and plastic electronics devices by printing is to obtain highly conductive patterns at sufficiently low temperatures which will not damage the heat sensitive substrates. Therefore, during the last decade, several approaches for the sintering of metallic nanoaprticles (NPs), usually silver, at low temperatures, were developed. However, the high cost of these silver based nano-inks limits fabrication of low cost plastic devices. Therefore, there is an unmet need for a low cost metallic ink with a low sintering temperature.

Here we describe the formation and printing of copper based ink-jet inks. Tailoring the nanoparticles stabilization mechanism enabled the formation of a low sintering temperature ink. It is shown that the use of these ink enables the formation of various devises printed on plastic, for example, copper based electroluminescent device and RFID antennas. Furthermore, the presence of anti-oxidation agents enables to achieve highly conductive patterns stable in air for a long time.
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Document Type: Research Article

Publication date: 2012-01-01

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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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