Awada C. Plasmonic Enhanced SERS in Ag/TiO
2 Nanostructured Film: An Experimental and Theoretical Study.
MICROMACHINES 2022;
13:mi13101595. [PMID:
36295948 PMCID:
PMC9610157 DOI:
10.3390/mi13101595]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/14/2022] [Accepted: 09/21/2022] [Indexed: 05/30/2023]
Abstract
In this work, we present a new study on the electromagnetic (EM) enhancement properties generated by Ag/TiO2 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.
Collapse