Plasmonic Enhanced SERS in Ag/TiO<sub>2</sub> Nanostructured Film: An Experimental and Theoretical Study

In this work, we present a new study on the electromagnetic (EM) enhancement properties generated by Ag/TiO<sub>2</sub> toward the finger print of methylene blue (MB) molecules deposited on the surface of Ag nanostructures. SERS intensity generated by MB molecules reflects the interactio...

Full description

Bibliographic Details
Published in:Micromachines
Main Author: Chawki Awada
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Subjects:
plasmonics
SERS
Ag/TiO<sub>2</sub>
MB
finite element simulation
EM enhancement
Online Access:https://www.mdpi.com/2072-666X/13/10/1595
Description
Summary:In this work, we present a new study on the electromagnetic (EM) enhancement properties generated by Ag/TiO<sub>2</sub> toward the finger print of methylene blue (MB) molecules deposited on the surface of Ag nanostructures. SERS intensity generated by MB molecules reflects the interaction between the local electric field and their bonds. A power-dependent SERS study in order to reveal the magnitude effect of a local electric field on the vibration behavior of molecular bonds of MB was performed. A theoretical study using finite element (COMSOL Multiphysics) was performed in order to understand the effect of interparticle distance of Ag nanoparticles on the enhancement properties.
ISSN:2072-666X

Similar Items