Abstract
We report the study of aurothiol nanoclusters using high-resolution electron microscopy, energy loss spectroscopy, X-ray photoelectron spectroscopy, Auger spectroscopy, and microscopy. It is concluded that the sulfur atoms are located on the surface of the gold nanoparticles in both (100) and (111) microfacets. The X-ray photoelectron spectroscopy data show that there is a Au-Au bond as well as a Au-S bond. Auger depth profile measurements made by sputtering of the nanoparticles corroborates that the sulfur is located on the surface of the nanoparticle. Quantitative Auger analysis indicates a ratio Au/S between ≈1.79 and 1.98.
Original language | English (US) |
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Pages (from-to) | 101-105 |
Number of pages | 5 |
Journal | Journal of Nanoscience and Nanotechnology |
Volume | 2 |
Issue number | 1 |
DOIs | |
State | Published - 2002 |
Externally published | Yes |
Keywords
- Auger analysis
- Aurothiol nanoclusters
- EELS
- HREM
- Microscopy
- Sulfur
- XPS
ASJC Scopus subject areas
- Bioengineering
- General Chemistry
- Biomedical Engineering
- General Materials Science
- Condensed Matter Physics