Translator Disclaimer
Paper
24 November 2003 Polymer-mediated synthesis of metal nanostructures
Author Affiliations +
Abstract
A solution-phase approach has been developed for the large-scale synthesis of metal nanostructures with well-defined shapes in the presence of a polymeric surfactant, i.e., poly(vinyl pyrrolidone) (PVP). As a demonstration, nanowires and nanocubes of silver have been synthesized through a modified polyol process that involved the reduction of silver nitrate with ethylene glycol heated at 160°C. Both reactant concentrations and the molar ratio between PVP and silver nitrate played critical roles in determining the shape and dimension of the final products. Relatively high concentrations of silver nitrate were favorable for the formation of silver nanocubes, while nanowires or nanorods became the dominated products if the concentration of silver nitrate was below 0.1 mM. The edge lengths of nanocubes and the lateral dimensions of nanowires synthesized with this method could be varied in the ranges of 50-180 nm and 30-60 nm, respectively. Nanocubes were single crystals mainly bounded by {100} facets. Each nanowire/nanorod, however, was characterized with a pentagonal cross-section, five straight side edges, and five flat side surfaces. It is believed that these silver nanostructures with well-defined shapes should find uses in a number of areas such as electronics, photonics, and catalysis.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yugang Sun and Younan Xia "Polymer-mediated synthesis of metal nanostructures", Proc. SPIE 5224, Nanomaterials and Their Optical Applications, (24 November 2003); https://doi.org/10.1117/12.504822
PROCEEDINGS
10 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Research of SERS-active substrate on metal particles
Proceedings of SPIE (August 21 2013)
Nanowires by solution-phase synthesis
Proceedings of SPIE (November 15 2002)
Chalcogen nanowires: synthesis and properties
Proceedings of SPIE (November 15 2002)

Back to Top