Drude relaxation rate in grained gold nanoantennas.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 20128610.
- Also identified by DOI 10.1021/nl9037246.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
The effect of grain boundaries on the electron relaxation rate is significant even for large area noble metal films and more so for plasmonic nanostructures. Optical spectroscopy and X-ray diffraction show a substantial improvement in plasmon resonance quality for square-particle nanoantennas after annealing due to an enlarged grain size from 22 to 40 nm and improved grain boundaries described by the electron reflection coefficient. The electron relaxation rate due to the grains is shown to decrease by a factor of 3.2.
Medical subject headings
- Crystallization
- Gold
- Nanostructures
- Nanotechnology
- Surface Plasmon Resonance