Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 17, Issue 5, Pages 2991-2995Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cp04850d
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Funding
- European Union
- state of Thuringia [FKZ: 2011 FE 9048, 2011 VF 0016]
- Deutsche Forschungsgemeinschaft [FR 1348/19-1]
- European Research Council (ERC) [321140]
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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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