Abstract
Gold-platinum (Au-Pt) solid solution nanoalloys were fabricated by high-intensity femtosecond laser irradiation of mixed solution of auric and platinum ions. Photo-absorption spectra of prepared solutions were measured by UV-visible spectrophotometer before and after irradiation. The fabricated particles were characterized by TEM and XRD. While two representative diffraction peaks are commonly observed between peak the positions of pure bulk gold and platinum for bulk because of a large immiscibility gap in a Au-Pt binary system, only a single diffraction peak was detected for single-nanometer sized Au-Pt nanoalloy particles fabricated by high-intensity laser irradiation of mixed solution of auric and platinum ions with the concentration of 5.0×10-4 M. This finding demonstrates that solid solution Au-Pt nanoalloys are successfully fabricated only by high-intensity laser irradiation of aqueous solution without any chemicals.
| Original language | English |
|---|---|
| Title of host publication | Supplemental Proceedings |
| Subtitle of host publication | Materials Fabrication, Properties, Characterization, and Modeling |
| Publisher | John Wiley and Sons Inc. |
| Pages | 3-8 |
| Number of pages | 6 |
| Volume | 2 |
| ISBN (Electronic) | 9781118062142 |
| ISBN (Print) | 9781118029466 |
| DOIs | |
| Publication status | Published - 2011 Apr 20 |
Keywords
- Au-Pt nanoalloy
- Femtosecond laser
- Liquid
ASJC Scopus subject areas
- Engineering(all)
- Materials Science(all)