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

作者：Alqudami Abdullah^*; Annapoorni S; Govind; Shivaprasad S M

来源：Journal of Nanoparticle Research, 2008, 10(6): 1027-1036.

DOI：10.1007/s11051-007-9333-4

• Ag-Au alloy nanoparticles
• electro-exploding wire
• XPS
• SPR
• fluorescence
• synthesis
• nanocomposites

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.

• 出版日期2008-8