Effect of particle size distributions on absorbance spectra of gold nanoparticles

Abstract

In this paper, a method is developed to calculate the absorbance spectra of nanoparticles solution containing a size distribution of particles using the Mie theory. The standard gold nanoparticles solutions were purchased and characterized with the UV-visible absorption spectroscopy and dynamic light scattering size measurements techniques. Model size distributions were fit to the experimental absorbance spectra using the method described herein. Good semi-quantitative fits were found, which elucidate qualitative differences between "small" and "large" gold nanoparticles.

Department(s)

Physics, Astronomy, and Materials Science
JVIC-CASE

Document Type

Article

DOI

https://doi.org/10.1016/j.physe.2010.01.004

Keywords

Dynamic light scattering, Gold, Nanoparticles, Size distribution, UV-visible spectroscopy

Publication Date

3-1-2010

Journal Title

Physica E: Low-Dimensional Systems and Nanostructures

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