One pot synthesis of Cu-based bifunctional nanoparticles by ps laser ablation

摘要

Bifunctional metal nanoparticles (NPs) are attractive structures, which combine the nanoscale properties of two different materials, i.e. two metals or a metal and an oxide. For example, Cu/Ag bifunctional nanoparticles are expected to exhibit the Raman enhancing properties of both copper and silver in a wider spectral range and, at the same time, the catalytic and bactericide properties of both metals. In principle, by using such structures, it would be possible to catalyze and monitor by Raman spectroscopy a chemical reaction directly to the single NP level.