Issue 5, 2015

Differences in single and aggregated nanoparticle plasmon spectroscopy

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

Article information

Article type
Communication
Submitted
23 Oct 2014
Accepted
09 Dec 2014
First published
10 Dec 2014
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2015,17, 2991-2995

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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