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Fano resonance in a gold nanosphere with a J-aggregate coating.

Publication ,  Journal Article
Fales, AM; Norton, SJ; Crawford, BM; DeLacy, BG; Vo-Dinh, T
Published in: Physical chemistry chemical physics : PCCP
October 2015

We present a facile method to induce J-aggregate formation on gold nanospheres in colloidal solution using polyvinylsulfate. The nanoparticle J-aggregate complex results in an absorption spectrum with a split lineshape due to plasmon-exciton coupling, i.e. via the formation of upper and lower plexcitonic branches. The use of nanoparticles with different plasmon resonances alters the position of the upper plexcitonic band while the lower band remains at the same wavelength. This splitting is investigated theoretically, and shown analytically to arise from Fano resonance between the plasmon of the gold nanoparticles and exciton of the J-aggregates. A theoretical simulation of a J-aggregate coated and uncoated gold nanosphere produces an absorption spectrum that shows good agreement with the experimentally measured spectra.

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Published In

Physical chemistry chemical physics : PCCP

DOI

EISSN

1463-9084

ISSN

1463-9076

Publication Date

October 2015

Volume

17

Issue

38

Start / End Page

24931 / 24936

Related Subject Headings

  • Surface Plasmon Resonance
  • Sulfonic Acids
  • Polyvinyls
  • Particle Size
  • Metal Nanoparticles
  • Gold
  • Chemical Physics
  • 51 Physical sciences
  • 40 Engineering
  • 34 Chemical sciences
 

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Fales, A. M., Norton, S. J., Crawford, B. M., DeLacy, B. G., & Vo-Dinh, T. (2015). Fano resonance in a gold nanosphere with a J-aggregate coating. Physical Chemistry Chemical Physics : PCCP, 17(38), 24931–24936. https://doi.org/10.1039/c5cp03277f
Fales, Andrew M., Stephen J. Norton, Bridget M. Crawford, Brendan G. DeLacy, and Tuan Vo-Dinh. “Fano resonance in a gold nanosphere with a J-aggregate coating.Physical Chemistry Chemical Physics : PCCP 17, no. 38 (October 2015): 24931–36. https://doi.org/10.1039/c5cp03277f.
Fales AM, Norton SJ, Crawford BM, DeLacy BG, Vo-Dinh T. Fano resonance in a gold nanosphere with a J-aggregate coating. Physical chemistry chemical physics : PCCP. 2015 Oct;17(38):24931–6.
Fales, Andrew M., et al. “Fano resonance in a gold nanosphere with a J-aggregate coating.Physical Chemistry Chemical Physics : PCCP, vol. 17, no. 38, Oct. 2015, pp. 24931–36. Epmc, doi:10.1039/c5cp03277f.
Fales AM, Norton SJ, Crawford BM, DeLacy BG, Vo-Dinh T. Fano resonance in a gold nanosphere with a J-aggregate coating. Physical chemistry chemical physics : PCCP. 2015 Oct;17(38):24931–24936.
Journal cover image

Published In

Physical chemistry chemical physics : PCCP

DOI

EISSN

1463-9084

ISSN

1463-9076

Publication Date

October 2015

Volume

17

Issue

38

Start / End Page

24931 / 24936

Related Subject Headings

  • Surface Plasmon Resonance
  • Sulfonic Acids
  • Polyvinyls
  • Particle Size
  • Metal Nanoparticles
  • Gold
  • Chemical Physics
  • 51 Physical sciences
  • 40 Engineering
  • 34 Chemical sciences