Differences in single and aggregated nanoparticle plasmon spectroscopy
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Publication date
2015-02-07
Authors
Singh, Pushkar
Deckert-Gaudig, Tanja
Schneidewind, Henrik
Kirsch, Konstantin
van Schrojenstein Lantman, E.M.
Weckhuysen, Bert
Deckert, Volker
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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.
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Singh, P, Deckert-Gaudig, T, Schneidewind, H, Kirsch, K, van Schrojenstein Lantman, E M, Weckhuysen, B M & Deckert, V 2015, 'Differences in single and aggregated nanoparticle plasmon spectroscopy', Physical Chemistry Chemical Physics, vol. 17, no. 5, pp. 2991-5. https://doi.org/10.1039/c4cp04850d