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Surface-enhanced Raman scattering based on pyramid shaped plasmonic nano-particles in graphene layer



  1. Opto-Electronic Department of Shiraz University of Technology, Shiraz, Iran


In this paper, the plasmonic effect of gold nanoparticles on graphene-based plasmonic waveguide to improve the nonlinear effect of Raman scattering is investigated. SERS has been explored extensively for applications in sensing and imaging, but the design and optimization of efficient substrates are still challenging. In order to understand and optimize the SERS process in nanoparticles, a novel pyramid shaped gold nanoparticle was synthesized in a graphene layer and characterized according to their average size, zeta potential and UV/visible absorption. In fact, in this research, an asymmetric new plasmonic nano-particle is proposed and designed as pyramid shaped gold nanoparticles in graphene layer. With the help of this new nanoparticle, we design and recommend a Raman booster so that the effect of Raman is improved noticeably. It will be shown that using the proposed nano-particle of gold-pyramid-shaped, the absorbance, and intensity of raman booster is improved noticeably..


Raman scattering, Plasmonics, Graphene, Absorption.

Submitted at: Oct. 27, 2021
Accepted at: April 5, 2023


SEYED ENAYATOLLAH TAGHAVI MOGHADDAM, FARZIN EMAMI, Surface-enhanced Raman scattering based on pyramid shaped plasmonic nano-particles in graphene layer, Journal of Optoelectronics and Advanced Materials Vol. 25, Iss. 3-4, pp. 121-127 (2023)