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An order of magnitude increase in the quantum efficiency of (AI)GaAs nanowires using hybrid photonic-plasmonic modes

Mokkapati, Sudha, Saxena, Dhruv, Jiang, Nian, Li, Li, Tan, Hark Hoe and Jagadish, Chennupati 2015. An order of magnitude increase in the quantum efficiency of (AI)GaAs nanowires using hybrid photonic-plasmonic modes. Nano Letters 15 (1) , pp. 307-312. 10.1021/nl503593w

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Abstract

We demonstrate 900% relative enhancement in the quantum efficiency (QE) of surface passivated GaAs nanowires by coupling them to resonant nanocavities that support hybrid photonic–plasmonic modes. This nonconventional approach to increase the QE of GaAs nanowires results in QE enhancement over the entire nanowire volume and is not limited to the near-field of the plasmonic structure. Our cavity design enables spatially and spectrally tunable resonant modes and efficient in- and out-coupling of light from the nanowires. Futhermore, this approach is not fabrication intensive; it is scalable and can be adapted to enhance the QE of a wide range of low QE semiconductor nanostructures.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: American Chemical Society
ISSN: 1530-6984
Last Modified: 29 Apr 2020 17:15
URI: http://orca-mwe.cf.ac.uk/id/eprint/100866

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