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Graphene-protected copper and silver plasmonics.

Abstract：

:Plasmonics has established itself as a branch of physics which promises to revolutionize data processing, improve photovoltaics, and increase sensitivity of bio-detection. A widespread use of plasmonic devices is notably hindered by high losses and the absence of stable and inexpensive metal films suitable for plasmonic applications. To this end, there has been a continuous search for alternative plasmonic materials that are also compatible with complementary metal oxide semiconductor technology. Here we show that copper and silver protected by graphene are viable candidates. Copper films covered with one to a few graphene layers show excellent plasmonic characteristics. They can be used to fabricate plasmonic devices and survive for at least a year, even in wet and corroding conditions. As a proof of concept, we use the graphene-protected copper to demonstrate dielectric loaded plasmonic waveguides and test sensitivity of surface plasmon resonances. Our results are likely to initiate wide use of graphene-protected plasmonics.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Kravets VG,Jalil R,Kim YJ,Ansell D,Aznakayeva DE,Thackray B,Britnell L,Belle BD,Withers F,Radko IP,Han Z,Bozhevolnyi SI,Novoselov KS,Geim AK,Grigorenko AN

doi

10.1038/srep05517

subject

Has Abstract

pub_date

2014-07-01 00:00:00

pages

5517

issn

2045-2322

pii

srep05517

journal_volume

4

pub_type

杂志文章

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