Discrete Dipole Approximation Calculation of the Extinction Spectra of Gold-Silver Alloy Nanoparticles

Journal of the Korean Chemical Society

Heemi Lee¹  Joonkyung Jang¹  Saha Leton Chandra¹ 

关键词: Surface Plasmon Resonance;    Discrete-Dipole Approximation;    Gold-Silver Alloy;    Extinction Spectrum;    Nanoparticles;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

By using the discrete-dipole approximation, we computed the extinction spectrum of a gold-silver alloy nanoparticle. We have examined how the surface plasmon resonance changes with respect to the variation in the composition of the alloy particle. As the fraction of silver increases for a 10nm particle, the peak position of the extinction spectrum blue-shifts linearly. The intensity of the peak however increases exponentially with increasing the silver fraction. These results are in accord with the previous experimental results.

【 授权许可】

Unknown