The European Physical Journal D

, 67:231

Simulated optical properties of noble metallic nanopolyhedra with different shapes and structures

Regular Article

DOI: 10.1140/epjd/e2013-40240-1

Cite this article as:
Zhang, AQ., Qian, DJ. & Chen, M. Eur. Phys. J. D (2013) 67: 231. doi:10.1140/epjd/e2013-40240-1

Abstract

The optical properties of nanostructured architectures are highly sensitive to their compositions, structures, dimensions, geometries and embedding mediums. Nanopolyhedra, including homogeneous metal nanoparticles and core-shell structures, have unique optical properties. In the beginning of this study, Discrete Dipole Approximation (DDA) method has been introduced. Then the simulated extinction spectra of single-component metal nanoparticles and Au@Ag polyhedra were calculated using both Mie and DDA methods. The influence of morphology and components on the optical response is discussed and well-supported by previously published experimental results. It is observed that the Localized Surface Plasmon Resonance peaks are mainly decided by sharp vertexes and symmetry of noble metallic polyhedra, as well as the structure of the Au@Ag core-shell nanoparticles.

Keywords

Clusters and Nanostructures

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of Materials ScienceFudan UniversityShanghaiP.R. China
  2. 2.Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Advanced Materials LaboratoryFudan UniversityShanghaiP.R. China