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Proceedings Paper

Plasmoelectric potentials in Au nano-hole arrays (presentation video)
Author(s): Matthew T. Sheldon; Jorik van de Groep; Ana M. Brown; Albert Polman; Harry A. Atwater Jr.
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Paper Abstract

The resonant plasmonic properties of metallic nanostructures depend strongly on charge carrier density. Stemming from this dependence, we report a theoretical framework and provided experimental evidence for a ‘plasmoelectric effect’, a newly described mechanism for generating electrochemical potentials in plasmonic nanostructures. Systematic electrical and optical characterization of Au nano-hole arrays shows that the magnitude and sign of the plasmoelectric potential depends on the frequency difference between the plasmon resonance and incident narrowband radiation. Our findings guide the development of solid-state power conversion devices based on the plasmoelectric effect, as our samples generate electrochemical potentials 1000x larger than comparable thermocouples.

Paper Details

Date Published: 17 August 2014
PDF: 1 pages
Proc. SPIE 9162, Active Photonic Materials VI, 91621D (17 August 2014); doi: 10.1117/12.2063576
Show Author Affiliations
Matthew T. Sheldon, California Institute of Technology (United States)
Jorik van de Groep, Center for Nanophotonics, FOM Institute AMOLF (Netherlands)
Ana M. Brown, California Institute of Technology (United States)
Albert Polman, FOM Institute for Atomic and Molecular Physics (Netherlands)
Harry A. Atwater Jr., California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 9162:
Active Photonic Materials VI
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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