Modification of Surface Bond Au Nanospheres by Chemically and Plasmonically Induced Pd Deposition.

ABSTRACT: In this work we investigated methods of modifying gold nanospheres bound to a silicon surface by depositing palladium onto the surfaces of single nanoparticles. Bimetallic Au-Pd nanoparticles can thus be gained for use in catalysis or sensor technology. For Pd deposition, two methods were chosen. The first method was the reduction of palladium acetate by ascorbic acid, in which the amounts of palladium acetate and ascorbic acid were varied. In the second method we utilized light-induced metal deposition by making use of the plasmonic effect. Through this method, the surface bond nanoparticles were irradiated with light of wavelengths capable of inducing plasmon resonance. The generation of hot electrons on the particle surface then reduced the palladium acetate in the vicinity of the gold

SUBMITTER: Stolle HLKS 

PROVIDER: S-EPMC7831503 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature