Gold on WSe2 Single Crystal Film as a Substrate for Surface Enhanced Raman Scattering (SERS) Sensing
Mesoscale and Nanoscale Physics
2018-11-21 v2 Materials Science
Abstract
Synthesis and characterization of high-quality single-crystal WSe2 films on highly-insulating substrate is presented. We demonstrate for the first time that the presence of gold nanoparticles in the basal plane of a WSe2 film can enhance its Raman scattering intensity. The experimentally observed enhancement ratio in the Raman signal correlates well with the simulated electric field intensity using a three-dimensional electromagnetic software and theoretical calculation. This work provides guidelines for the use of two-dimensional WSe2 films as a SERS substrate.
Keywords
Cite
@article{arxiv.1408.6029,
title = {Gold on WSe2 Single Crystal Film as a Substrate for Surface Enhanced Raman Scattering (SERS) Sensing},
author = {Bablu Mukherjee and Wei Sun Leong and Yida Li and Hao Gong and Linfeng Sun and Ze Xiang Shen and Ergun Simsek and John T. L. Thong},
journal= {arXiv preprint arXiv:1408.6029},
year = {2018}
}