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Fabrication of gold tip suitable for tip-enhanced Raman spectroscopy.

Williams, C*; Roy, D (2008) Fabrication of gold tip suitable for tip-enhanced Raman spectroscopy. J. Vac. Sci. Technol. B, 26 (5). pp. 1761-1764.

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Abstract

A simple method of fabricating gold tip suitable for using in a shear-force atomic force microscopy for tip enhanced Raman spectroscopy (TERS) is reported. The electrochemical method is optimised to achieve an aspect ratio of the tip, which can withstand the lateral force at the end of the tip during scanning. The radius of curvature of the tips is small enough (smaller than fifteen nanometre) to give good Raman enhancements for TERS. The tip-fabrication process is self-terminating and avoids using expensive electronic systems. The optimised method takes less than 20 seconds to fabricate one tip.

Item Type: Article
Keywords: Electrochemical etching, tip enhanced Raman spectroscopy, shear force microscopy
Subjects: Analytical Science
Analytical Science > Trace Analysis and Electrochemistry
Last Modified: 23 Jul 2018 13:03
URI: http://eprintspublications.npl.co.uk/id/eprint/4499

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