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Wiley, Particle & Particle Systems Characterization, 2(32), p. 182-187, 2014

DOI: 10.1002/ppsc.201400104

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Facile Fabrication of Spherical Nanoparticle-Tipped AFM Probes for Plasmonic Applications

Journal article published in 2014 by Alan Sanders, Liwu Zhang ORCID, Richard W. Bowman, Lars O. Herrmann, Jeremy J. Baumberg
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

(Figure Presented) A simple method for fabricating Au nano-particles onto the apex of atomic force microscopy (AFM) tips is demonstrated. Apex-selected pulsed electrodeposition, controlled with voltage and pulse time, yields repeatable fabrication of spherical Au nanoparticle tips. Simultaneous fabrication of many tips is demonstrated, enabling high throughput. Surface-enhanced Raman scattering and dark-field spectroscopy are used to show improved plasmonic behavior compared with conventional Au AFM tips. © 2014 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.