Synthesis, Study, and Discrete Dipole Approximation Simulation of Ag-Au Bimetallic Nanostructures

作者: Yang Hu , An-Qi Zhang , Hui-Jun Li , Dong-Jin Qian , Meng Chen

DOI: 10.1186/S11671-016-1435-4

关键词: NanoparticleBimetallic stripNanochemistryDiscrete dipole approximationAlloySurface plasmon resonanceChemical engineeringNanostructureMaterials scienceNanotechnologyPlasmon

摘要: Water-soluble Ag-Au bimetallic nanostructures were prepared via co-reduction and seed-mediated growth routes employing poly-(4-styrenesulfonic acid-co-maleic acid) (PSSMA) as both a reductant stabilizer. alloy nanoparticles obtained by the of AgNO3 HAuCl4, while core-shell through using PSSMA-Au nanoparticle seeds in heated solution. The optical properties studied, mechanism was investigated. Plasmon resonance bands range 422 to 517 nm observed for nanoparticles, two plasmon resonances found nanostructures. Furthermore, discrete dipole approximation theoretical simulation used assess property differences between Composition morphology studies confirmed that synthesized materials

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