Communication: Advanced Optical Materials

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Unraveling the Evolution and Nature of the Plasmons in (Au Core)–(Ag Shell) Nanorods

  1. Ruibin Jiang,
  2. Huanjun Chen,
  3. Lei Shao,
  4. Qian Li,
  5. Jianfang Wang*

Article first published online: 20 JUN 2012

DOI: 10.1002/adma.201201896

Issue

Advanced Materials

Advanced Materials

Volume 24, Issue 35, pages OP200–OP207, September 11, 2012

Additional Information

How to Cite

Jiang, R., Chen, H., Shao, L., Li, Q. and Wang, J. (2012), Unraveling the Evolution and Nature of the Plasmons in (Au Core)–(Ag Shell) Nanorods. Adv. Mater., 24: OP200–OP207. doi: 10.1002/adma.201201896

Author Information

  1. Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China

*Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.

Publication History

  1. Issue published online: 4 SEP 2012
  2. Article first published online: 20 JUN 2012
  3. Manuscript Received: 10 MAY 2012

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Keywords:

  • core−shell nanoparticles;
  • gold nanorods;
  • optically active materials;
  • plasmon resonance;
  • silver
Thumbnail image of graphical abstract

Evolution of the sizes and plasmonic properties of (Au core)−(Ag shell) nanorods is studied. Four plasmon bands are observed on the core−shell nanorods and their properties are investigated. The lowest-energy one belongs to the longitudinal dipolar plasmon mode, the second-lowest-energy one belongs to the transverse dipolar plasmon mode, and the two highest-energy ones are ascribed to octupolar plasmon modes.

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