WebThe EC-TERS spectrum measured by re-approaching after returning the sample potential to −0.2 V vs. Au is shown as a blue curve, indicating that the peaks derived from the … WebEC-TERS results so acquired were disregarded. Gold-film-over-nanosphere (Au FON) electrodes were prepared by drop casting 4 μL of 0.05% Triton X (aq) and 0.5 μL of 280 nm polystyrene spheres (Bangs Laboratories, Inc.) onto 2 mm diameter commercial Au disk electrodes (CH Instruments) by a similar procedure as previously described.29

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WebNov 1, 2024 · Their EC-TERS system was configured with optics in a side-illumination configuration and the analyte was the Au electrode covered with benzenethiol monolayers in aqueous electrolyte [109]. The STM image and TERS spectra were simultaneously obtained with applying electrode potential (Fig. 15 (a)(b)). The scattered light was collected during ... WebFor example, Zeng et al. reported a STM-based EC-TERS with its laser introduced horizontally into an EC cell through a long working distance microscope objective to illuminate the gap between the tip and sample surface (sample tilted by 10°) (Fig. 11a). As a result, a strong TERS signal on 4′-(pyridin-4-yl)biphenyl-4-yl)methanethiol (4-PBT ... penn state study abroad maymester 2022

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WebJul 1, 2024 · Using EC-Fluorescence and EC-SERS, authors demonstrated that such a shift of the optical response relative to the CV experiment was specific to the near-field response. Kurouski et al. also explored EC-TERS of NB at different scan rates (5–30 mV/s) and observed no changes in the acquired EC-TERS profiles [99]. Based on this, the authors … WebElectrochemical tip-enhanced Raman spectroscopy (EC-TERS), which provides molecular fingerprint information with nanometer-scale spatial resolution, is a promising technique … penn state study abroad maymester