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Tailorable plasmonic circular dichroism properties of helical nanoparticle superstructures

Nano Letters, ISSN: 1530-6984, Vol: 13, Issue: 7, Page: 3256-3261
2013
  • 229
    Citations
  • 0
    Usage
  • 195
    Captures
  • 0
    Mentions
  • 10
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    229
  • Captures
    195
  • Social Media
    10
    • Shares, Likes & Comments
      10
      • Facebook
        10

Article Description

We utilize a peptide-based methodology to prepare a diverse collection of double-helical gold nanoparticle superstructures having controllable handedness and structural metrics. These materials exhibit well-defined circular dichroism signatures at visible wavelengths owing to the collective dipole-dipole interactions between the nanoparticles. We couple theory and experiment to show how tuning the metrics and structure of the helices results in predictable and tailorable chirooptical properties. Finally, we experimentally and theoretically demonstrate that the intensity, position, and nature of the chirooptical activity can be carefully adjusted via silver overgrowth. These studies illustrate the utility of peptide-based nanoparticle assembly platforms for designing and preparing complex plasmonic materials with tailorable optical properties. © 2013 American Chemical Society.

Bibliographic Details

Song, Chengyi; Blaber, Martin G; Zhao, Gongpu; Zhang, Peijun; Fry, H Christopher; Schatz, George C; Rosi, Nathaniel L

American Chemical Society (ACS)

Chemical Engineering; Chemistry; Materials Science; Physics and Astronomy; Engineering

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