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Lookup NU author(s): Dr Billy Murdoch,
Professor Ian Fletcher,
Professor Peter Cumpson
This is the final published version of an article that has been published in its final definitive form by American Institute of Physics Inc., 2017.
For re-use rights please refer to the publisher's terms and conditions.
© 2017 Author(s). Gas cluster ion beam sputtering has been used to study the self-organising behaviour of In metallic nanoparticles produced by preferential sputtering of phosphorus atoms in InP. Discrete plasmonic In nanoparticles are observed at the earliest stages of surface modification. The surfaces have been investigated in situ by reflection electron energy loss spectroscopy, Auger electron spectroscopy, and photoluminescence spectroscopy. By altering the excitation intensity, we observe alterations of the photoluminescence spectrum that are attributed to photoconductive-coupling between In nanoparticles. The devices presented are suitable for visible wavelength surface enhanced Raman spectroscopy and, potentially, offer a route to active all-optical switches.
Author(s): Murdoch BJ, Barlow AJ, Fletcher IW, Cumpson PJ
Publication type: Article
Publication status: Published
Journal: Applied Physics Letters
Online publication date: 23/08/2017
Acceptance date: 07/08/2017
Date deposited: 18/08/2017
ISSN (print): 0003-6951
Publisher: American Institute of Physics Inc.
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