The optical properties of metal nanoparticles

The influence of size, shape, and dielectric environment

K. Lance Kelly, Eduardo Coronado, Lin Lin Zhao, George C Schatz

Research output: Contribution to journalArticle

6859 Citations (Scopus)

Abstract

The optical properties of metal nanoparticles have long been of interest in physical chemistry, starting with Faraday's investigations of colloidal gold in the middle 1800s. More recently, new lithographic techniques as well as improvements to classical wet chemistry methods have made it possible to synthesize noble metal nanoparticles with a wide range of sizes, shapes, and dielectric environments. In this feature article, we describe recent progress in the theory of nanoparticle optical properties, particularly methods for solving Maxwell's equations for light scattering from particles of arbitrary shape in a complex environment. Included is a description of the qualitative features of dipole and quadrupole plasmon resonances for spherical particles; a discussion of analytical and numerical methods for calculating extinction and scattering cross-sections, local fields, and other optical properties for nonspherical particles; and a survey of applications to problems of recent interest involving triangular silver particles and related shapes.

Original languageEnglish
Pages (from-to)668-677
Number of pages10
JournalJournal of Physical Chemistry B
Volume107
Issue number3
DOIs
Publication statusPublished - Jan 23 2003

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Metal nanoparticles
Optical properties
optical properties
nanoparticles
metals
Physical chemistry
Gold Colloid
Maxwell equations
Precious metals
Silver
Light scattering
physical chemistry
Numerical methods
Gold
noble metals
Maxwell equation
scattering cross sections
Scattering
Nanoparticles
extinction

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

The optical properties of metal nanoparticles : The influence of size, shape, and dielectric environment. / Kelly, K. Lance; Coronado, Eduardo; Zhao, Lin Lin; Schatz, George C.

In: Journal of Physical Chemistry B, Vol. 107, No. 3, 23.01.2003, p. 668-677.

Research output: Contribution to journalArticle

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