Localized plasmon resonances of bimetallic AgAuAg nanorods
- Authors
- Ahn, Sung-Hyun; Kim, Deok-Soo; Seo, Daeha; Choi, Wonjun; Yi, Gi-Ra; Song, Hyunjoon; Park, Q-Han; Kim, Zee Hwan
- Issue Date
- 2013
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.15, no.12, pp.4190 - 4194
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL CHEMISTRY CHEMICAL PHYSICS
- Volume
- 15
- Number
- 12
- Start Page
- 4190
- End Page
- 4194
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/106470
- DOI
- 10.1039/c2cp43365f
- ISSN
- 1463-9076
- Abstract
- We investigated the localized surface plasmon resonances of individual AgAuAg nanorods (NRs) using the dark-field spectro-microscopy technique. We find that the scattering spectra of such hetero-NRs show longitudinal resonance wavelengths that are nearly insensitive to the relative composition of Ag and Au. Instead, the resonance is mostly governed by the overall length of the nanorod. This shows that the plasmons oscillate along the entire length of the NR without the significant perturbation at the Ag-Au interfaces. The results demonstrate that the overall geometry as well as the composition determine the tunability of the hetero-metallic nanostructures, and provide an important design rule for the composition-tunable bimetallic plasmon structures.
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Collections - College of Science > Department of Physics > 1. Journal Articles
- College of Science > Department of Chemistry > 1. Journal Articles
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