Ultrahigh field enhancement and photoresponse in atomically separated arrays of plasmonic dimers

Paria, Debadrita ; Roy, Kallol ; Singh, Haobijam Johnson ; Kumar, Shishir ; Raghavan, Srinivasan ; Ghosh, Arindam ; Ghosh, Ambarish (2015) Ultrahigh field enhancement and photoresponse in atomically separated arrays of plasmonic dimers Advanced Materials, 27 (10). pp. 1751-1758. ISSN 0935-9648

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/adma.20...

Related URL: http://dx.doi.org/10.1002/adma.201404312

Abstract

Combining oblique angle deposition with standard graphene transfer protocols, two planar arrays of metal nanoparticles are fabricated that are vertically separated by atomic dimensions, corresponding precisely to the thickness of a single layer of graphene, i.e. 0.34 nm. Upon illumination of light at an appropriate wavelength, the local electromagnetic field at the junction of the dimers can be increased dramatically, thereby resulting in the most sensitive graphene–plasmonic hybrid photodetector reported to date.

Item Type:Article
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Deposited On:01 Feb 2018 10:02
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