Plasmonic properties of supported Pt and Pd nanostructures.
basic_science · Level V
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Abstract
The plasmonic properties of nanodisk arrays of Pt, Pd, and, for comparison, Ag are studied over a large size and spectral range and analyzed theoretically by an electrostatic model. Pt and Pd nanodisks exhibit broad localized surface plasmons with a higher sensitivity of the plasmon to the disk aspect ratio compared to Ag. Extinction cross-sections are generally about 50% smaller for Pt and Pd. The spectral plasmon positions, line-widths, and extinction cross-sections are well reproduced by the model.
Medical subject headings
- Crystallization
- Models, Chemical
- Nanostructures
- Palladium
- Platinum
- Surface Plasmon Resonance