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.
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We would like to acknowledge the Department of Science and Technology (DST), India for the funding through the project (SR/S5/NM-52/2002) from the Nanoscience and Technology Initiative programme.
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Alqudami, A., Annapoorni, S., Govind et al. Ag–Au alloy nanoparticles prepared by electro-exploding wire technique. J Nanopart Res 10, 1027–1036 (2008). https://doi.org/10.1007/s11051-007-9333-4
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DOI: https://doi.org/10.1007/s11051-007-9333-4