Differences in single and aggregated nanoparticle plasmon spectroscopy.
نویسندگان
چکیده
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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ورودعنوان ژورنال:
- Physical chemistry chemical physics : PCCP
دوره 17 5 شماره
صفحات -
تاریخ انتشار 2015