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Materials 2010, 3(9), 4626-4638; doi:10.3390/ma3094626

Copper Nanoparticles for Printed Electronics: Routes Towards Achieving Oxidation Stability

* ,  and
Casali Institute of Applied Chemistry, the Institute of Chemistry, the Hebrew University of Jerusalem, Jerusalem 91904, Israel
* Author to whom correspondence should be addressed.
Received: 22 July 2010 / Revised: 18 August 2010 / Accepted: 1 September 2010 / Published: 8 September 2010
(This article belongs to the Special Issue Metal Nanoparticles)
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In the past few years, the synthesis of Cu nanoparticles has attracted much attention because of its huge potential for replacing expensive nano silver inks utilized in conductive printing. A major problem in utilizing these copper nanoparticles is their inherent tendency to oxidize in ambient conditions. Recently, there have been several reports presenting various approaches which demonstrate that copper nanoparticles can resist oxidation under ambient conditions, if they are coated by a proper protective layer. This layer may consist of an organic polymer, alkene chains, amorphous carbon or graphenes, or inorganic materials such as silica, or an inert metal. Such coated copper nanoparticles enable achieving high conductivities by direct printing of conductive patterns. These approaches open new possibilities in printed electronics, for example by using copper based inkjet inks to form various devices such as solar cells, Radio Frequency Identification (RFID) tags, and electroluminescence devices. This paper provides a review on the synthesis of copper nanoparticles, mainly by wet chemistry routes, and their utilization in printed electronics.
Keywords: printed electronics; copper nanoparticles; conductive inks printed electronics; copper nanoparticles; conductive inks
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Magdassi, S.; Grouchko, M.; Kamyshny, A. Copper Nanoparticles for Printed Electronics: Routes Towards Achieving Oxidation Stability. Materials 2010, 3, 4626-4638.

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