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Issue 5, 2015
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Differences in single and aggregated nanoparticle plasmon spectroscopy

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Abstract

Vibrational spectroscopy usually provides structural information averaged over many molecules. We report a larger peak position variation and reproducibly smaller FWHM of TERS spectra compared to SERS spectra indicating that the number of molecules excited in a TERS experiment is extremely low. Thus, orientational averaging effects are suppressed and micro ensembles are investigated. This is shown for a thiophenol molecule adsorbed on Au nanoplates and nanoparticles.

Graphical abstract: Differences in single and aggregated nanoparticle plasmon spectroscopy

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Article information


Submitted
23 Oct 2014
Accepted
09 Dec 2014
First published
10 Dec 2014

This article is Open Access

Phys. Chem. Chem. Phys., 2015,17, 2991-2995
Article type
Communication

Differences in single and aggregated nanoparticle plasmon spectroscopy

P. Singh, T. Deckert-Gaudig, H. Schneidewind, K. Kirsch, E. M. van Schrojenstein Lantman, B. M. Weckhuysen and V. Deckert, Phys. Chem. Chem. Phys., 2015, 17, 2991
DOI: 10.1039/C4CP04850D

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