A facile surface enhanced Raman scattering substrate based on silver deposited sandpaper

Abstract

Flexible surface enhanced Raman scattering (SERS) substrate was prepared by modification of sandpaper with silver nanoparticles. Under 633 nm excitation wavelength, the SERS enhancement effect of sandpapers which were treated with silver nanoparticles were evaluated by collecting Raman signals of probed molecules. The results demonstrate that the SERS enhancement effect of white (12,000 meshes) is better than that of pink (8000 meshes) sandpaper under the same condition; when the concentration of probe molecules is [Formula: see text] mol/L, white sandpaper has the best SERS enhancement; the Raman scattering spectrum has better signal when the silver sol is 15 [Formula: see text].

Improved surface-enhanced Raman scattering (SERS) sensitivity to molybdenum oxide nanosheets via the lightning rod effect with application in detecting methylene blue

“…In this work, in the Raman scattering peak collected from the MoO 3 /MoO 2 NSs obtained by annealing for 30 h, B 4 at 1630 cm −3 is selected for the EF calculation. According to the measurements, the EF is 1.4×10 5 for the concentration of 1×10 −7 M, which is lower than that of a noble metal SERS substrate (Au, Ag) but higher than that of previous semiconductors with a SERS effect [8,35,36]. By using the as-prepared MoO Besides the high sensitivity, good reproducibility is another important factor for practical SERS applications.…”

Recent progresses on metamaterials for optical absorption and sensing: a review

“…SERS is a useful technique that can increase Raman signals from molecules due to the enhancement of the electromagnetic field on surface [258][259][260][261][262][263][264][265][266][267]. The enhancement factor (EF) is an important parameter to describe the SERS performance, which is dependent on the substrate [225].…”

Fractal microstructure of Ag film via plasma discharge as SERS substrates*

“…For example, chemical reduction method is applied to the synthesis of indium-silver bimetallic nanocomposites with high enhancement factor, [12] and sandpapers are treated with silver nanoparticles to work as a flexible SERS substrate. [13] Recent efforts have focused on the applications of the atmospheric pressure plasma (APP) in a variety of fields, which is taking place at a breathtaking pace. [14,15] In addition to the high-energy electrons, UV light and shock waves, a high density of reactive radicals such as hydroxyl radicals, atomic oxygen and O 3 are also generated as plasma interacts with reactant.…”