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Proceedings Paper

Diode-coupled Ag nanoantennas for nanorectenna energy conversion
Author(s): Richard Osgood; Stephen Giardini; Joel Carlson; Gustavo E. Fernandes; Jin Ho Kim; Jimmy Xu; Matthew Chin; Barbara Nichols; Madan Dubey; Philip Parilla; Joseph Berry; David Ginley; Prakash Periasamy; Harvey Guthrey; Ryan O'Hayre; Walter Buchwald
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Paper Abstract

Arrays of "nanorectennas" consist of diode-coupled nanoantennas with plasmonic resonances in the visible/near-infrared (vis/nir) regime, and are expected to convert vis/nir radiative power into useful direct current. We study plasmonic resonances in large format (~ 1 mm2 area) arrays, consisting of electron beam-patterned horizontal (e.g., parallel to the substrate) Ag lines patterned on ultrathin (< 20 nm) tunneling barriers (NiO, NbOx, and other oxides). Our e-beam fabrication technique is scalable to large dimensions, and allows us to easily probe different antenna dimensions. These tunneling barriers, located on a metallic ground plane, rectify the alternating current generated in the nanoantenna at resonance. We measure the plasmonic resonances in these nanoantennas, and find good agreement with modeling, which also predicts that the electric field driving the electrons into the ground plane (and therefore the rectification efficiency) is considerably enhanced at resonance. Various metal-insulator-metal tunneling diodes, incorporating the afore-mentioned barrier layers and different metals for the ground plane, are experimentally characterized and compared to our conduction model. We observe ~ 1 mV signals from NiO-based nanorectenna arrays illuminated by 532 nm and 1064 nm laser pulses, and discuss the origin of these signals.

Paper Details

Date Published: 21 September 2011
PDF: 17 pages
Proc. SPIE 8096, Plasmonics: Metallic Nanostructures and Their Optical Properties IX, 809610 (21 September 2011); doi: 10.1117/12.893313
Show Author Affiliations
Richard Osgood, U.S. Army Natick Soldier Research, Development and Engineering Ctr. (United States)
Stephen Giardini, U.S. Army Natick Soldier Research, Development and Engineering Ctr. (United States)
Joel Carlson, U.S. Army Natick Soldier Research, Development and Engineering Ctr. (United States)
Gustavo E. Fernandes, Brown Univ. (United States)
Jin Ho Kim, Brown Univ. (United States)
Jimmy Xu, Brown Univ. (United States)
Matthew Chin, U.S. Army Research Lab. (United States)
Barbara Nichols, U.S. Army Research Lab. (United States)
Madan Dubey, U.S. Army Research Lab. (United States)
Philip Parilla, National Renewable Energy Lab. (United States)
Joseph Berry, National Renewable Energy Lab. (United States)
David Ginley, National Renewable Energy Lab. (United States)
Prakash Periasamy, Colorado School of Mines (United States)
Harvey Guthrey, Colorado School of Mines (United States)
Ryan O'Hayre, Colorado School of Mines (United States)
Walter Buchwald, Solid State Scientific Corp. (United States)


Published in SPIE Proceedings Vol. 8096:
Plasmonics: Metallic Nanostructures and Their Optical Properties IX
Mark I. Stockman, Editor(s)

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