Abstract
We report on (i) the synthesis of monodisperse Au and Au-core/Ag-shell nanoparticles (NPs) with controllability of the Au-core in the range of 20–50 nm and fixing the thickness of the Ag shell of ∼20 nm, and (ii) the arrangement of two-dimensional (2D) arrays of Au core and Au-core/Ag-shell NPs on the 1 cm2 ITO substrates. Various Au NPs with uniform size-distribution were synthesised by seed-mediated growth method at ambient conditions. All synthesised 2D-arrays with homogeneous and dense monolayers of NPs (coverage ∼85%) were prepared by hybrid deposition method based on the mixed n-alkanethiolate self-assembled monolayer. We have used the fabricated 2D-arrays from the 20-nm Au-core/Ag-shell NPs as a surface-enhanced Raman scattering (SERS) substrate to take the Raman scattering spectra of carbaryl pesticide at very low concentration of 0.01 ppm.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Advances in Natural Sciences: Nanoscience and Nanotechnology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
