Skip to main content

Optical Absorption Spectra of Coinage Metals (Cu, Ag, Au) Nanorods: A Theoretical Study

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

Gold nanorods of average aspect ratio 3.1 have been synthesized. The nanorod solution has been characterized with UV-visible absorption spectra and TEM. UV-visible spectra of gold nanorods solution exhibit two plasmon modes, called transverse and longitudinal modes. Transverse and longitudinal plasmon modes of Cu, Ag and Au nanorods have been simulated on the basis of Gan's model for different aspect ratio keeping medium dielectric constant fixed and for different medium dielectric constant keeping aspect ratio fixed. Simulated result shows that the absorption maximum of longitudinal mode depends linearly on aspect ratio of nanorods, medium dielectric constant and type of metals. Empirical relations to obtain peak longitudinal plasmon frequency in terms of aspect ratio and medium dielectric constant for Cu, Ag and Au have been suggested. Vibrational dephasing time of Cu, Ag and Au for different resonance energy is also calculated.

Keywords: DEPHASING; NANORODS SYNTHESIS; UV-VISIBLE SPECTRA OF NANORODS

Document Type: Research Article

DOI: https://doi.org/10.1166/jctn.2008.2561

Publication date: 2008-07-01

More about this publication?
  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more