Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 7-Day Trial for You or Your Team.

Learn More →

Synthesis and Optical Properties of Anisotropic Metal Nanoparticles

Synthesis and Optical Properties of Anisotropic Metal Nanoparticles In this paper we overview our recent studies of anisotropic noble metal (e.g. gold and silver) nanoparticles, in which a combination of theory and experiment has been used to elucidate the extinction spectra of the particles, as well as information related to their surface enhanced Raman spectroscopy. We used wet-chemical methods to generate several structurally well-defined nanostructures other than solid spheres, including silver nanodisks and triangular nanoprisms, and gold nanoshells and multipods. When solid spheres are transformed into one of these shapes, the surface plasmon resonances in these particles are strongly affected, typically red-shifting and even splitting into distinctive dipole and quadrupole plasmon modes. In parallel, we have developed computational electrodynamics methods based on the discrete dipole approximation (DDA) method to determine the origins of these intriguing optical features. This has resulted in considerable insight concerning the variation of plasmon wavelength with nanoparticle size, shape and dielectric environment, as well as the use of these particles for optical sensing applications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Fluorescence Springer Journals

Synthesis and Optical Properties of Anisotropic Metal Nanoparticles

Journal of Fluorescence , Volume 14 (4) – Oct 18, 2004

Loading next page...
 
/lp/springer-journals/synthesis-and-optical-properties-of-anisotropic-metal-nanoparticles-2sdMFTDUpo

References (68)

Publisher
Springer Journals
Copyright
Copyright © 2004 by Plenum Publishing Corporation
Subject
Biomedicine; Biomedicine, general; Biological and Medical Physics, Biophysics; Biotechnology; Biochemistry, general; Analytical Chemistry
ISSN
1053-0509
eISSN
1573-4994
DOI
10.1023/B:JOFL.0000031815.71450.74
Publisher site
See Article on Publisher Site

Abstract

In this paper we overview our recent studies of anisotropic noble metal (e.g. gold and silver) nanoparticles, in which a combination of theory and experiment has been used to elucidate the extinction spectra of the particles, as well as information related to their surface enhanced Raman spectroscopy. We used wet-chemical methods to generate several structurally well-defined nanostructures other than solid spheres, including silver nanodisks and triangular nanoprisms, and gold nanoshells and multipods. When solid spheres are transformed into one of these shapes, the surface plasmon resonances in these particles are strongly affected, typically red-shifting and even splitting into distinctive dipole and quadrupole plasmon modes. In parallel, we have developed computational electrodynamics methods based on the discrete dipole approximation (DDA) method to determine the origins of these intriguing optical features. This has resulted in considerable insight concerning the variation of plasmon wavelength with nanoparticle size, shape and dielectric environment, as well as the use of these particles for optical sensing applications.

Journal

Journal of FluorescenceSpringer Journals

Published: Oct 18, 2004

There are no references for this article.