Tunable surface plasma resonance frequency in Ag core/Au shell nanoparticles system prepared by laser ablation

Huifeng Han, Yan Fang, Zhipeng Li, Hongxing Xu

Research output: Contribution to journalArticlepeer-review

Abstract

A method for preparation of Ag core/Au shell nanoparticles with tunable surface plasma resonance (SPR) band was presented and studied. It was found that the tunable SPR band could be significantly conducted and achieved by laser ablation to Au plate in Ag colloidal solution, leading to the formation of Ag core/Au shell structure by the deposition of Au atoms on the surface of Ag nanoparticles. Dependence of the tunable shift of SPR bands on Ag core/Au shell structure was further illustrated by simulation of absorption spectra based on Mie theory, and consistent with the experimental results.
Original languageEnglish
Article number023116
JournalApplied Physics Letters
Volume92
Issue number2
DOIs
Publication statusPublished - 2008

Subject classification (UKÄ)

  • Condensed Matter Physics

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