Journal of Nanoparticle Research

, Volume 10, Issue 6, pp 1027–1036

Ag–Au alloy nanoparticles prepared by electro-exploding wire technique

  • Abdullah Alqudami
  • S. Annapoorni
  • Govind
  • S. M. Shivaprasad
Research Paper

DOI: 10.1007/s11051-007-9333-4

Cite this article as:
Alqudami, A., Annapoorni, S., Govind et al. J Nanopart Res (2008) 10: 1027. doi:10.1007/s11051-007-9333-4
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Abstract

Homogenous Ag–Au alloy nanoparticles having an average size of 12 ± 2 nm were successfully prepared by the exploding wire technique comprising of a wire–plate system and using 12 V batteries. The X-ray photoelectron spectroscopy data reveal the formation of alloy nanoparticles with Ag80-Au20 composition, which agrees with the absorption data, obtained using UV-Visible spectroscopy. XPS also reveals a thin metal-oxide shell on the metallic alloy core. These alloy nanoparticles show visible fluorescence emission that was compared with the observed fluorescence from pure Ag nanoparticles. A mechanism for the observed fluorescence is also provided.

Keywords

Ag–Au alloy nanoparticles Electro-exploding wire XPS SPR Fluorescence Synthesis Nanocomposites 

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Abdullah Alqudami
    • 1
  • S. Annapoorni
    • 1
  • Govind
    • 2
  • S. M. Shivaprasad
    • 2
  1. 1.Department of Physics and AstrophysicsUniversity of DelhiDelhiIndia
  2. 2.Surface Physics & Nanostructures GroupNational Physical LaboratoryNew DelhiIndia

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