1 March 2011 Synthesis and oxidation of silver nanoparticles
Author Affiliations +
We demonstrated a fast and easy way to synthesize Ag nanoparticles (NPs) on ZnO nanowires (NWs) and silicon substrates by an electroless (EL) plating approach. ZnO NWs used here were grown via vapor-solid (VS) mechanism at 560 °C for 30 min. The stability to oxidation of these EL-produced homogeneous Ag NPs on ZnO nanowires was investigated by surface enhanced Raman spectroscopy (SERS), showing that the attachment of thiol to the Ag surface can slow down the oxidation process, and the SERS signal remains strong for more than ten days. Furthermore, we examined the surface oxidation kinetics of the Ag NPs as a function of NPs size and size distribution by monitoring the oxygen amount in the composites using energy dispersive x-ray (EDX). Results indicate that the EL plated Ag NPs show faster oxidation rates than those produced by e-beam (EB) evaporation in air. We attribute this to the fact that the EL produced silver particles are very small, in the 20 nm range, and thus have high surface energy, thus enhancing the oxidation. These studies provide extensive information related to the Ag NP oxidation rates, which can help in extending the Ag lifetime for various applications.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hua Qi, Hua Qi, D. A. Alexson, D. A. Alexson, O. J. Glembocki, O. J. Glembocki, S. M. Prokes, S. M. Prokes, } "Synthesis and oxidation of silver nanoparticles", Proc. SPIE 7947, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling VIII, 79470Y (1 March 2011); doi: 10.1117/12.871122; https://doi.org/10.1117/12.871122


Fabrication of ZnO nanostructures by PLD
Proceedings of SPIE (January 07 2015)
Research of SERS-active substrate on metal particles
Proceedings of SPIE (August 20 2013)
Novel ZnO nanostructures
Proceedings of SPIE (October 26 2003)
Enhanced optical absorption in silicon nanowire
Proceedings of SPIE (October 14 2012)

Back to Top