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arXiv · 1001.3809

Advanced piezoresistance of extended metal/insulator core shell nanoparticle assemblies

E. K. Athanassiou·F. Krumeich·R. N. Grass·W. J. Stark
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Abstract

Assembled metal/insulator nanoparticles with a core/shell geometry provide access to materials containing a large number (>106) of tunneling barriers. We demonstrate the production of ceramic coated metal nanoparticles exhibiting an exceptional pressure sensitive conductivity. We further show that graphene bi- and trilayers on 20 nm copper nanoparticles are insulating in such core/shell geometry and show a similar pressure dependent conductivity. This demonstrates that core/shell metal/insulator assemblies offer a route to alternative sensing materials.

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E. K. Athanassiou, F. Krumeich, R. N. Grass, W. J. Stark. 2010-01-21. Advanced piezoresistance of extended metal/insulator core shell nanoparticle assemblies. https://doi.org/10.1103/physrevlett.101.166804

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