Skip to main content
Journal cover image

Gold nanoparticles on polarizable surfaces as Raman scattering antennas.

Publication ,  Journal Article
Chen, S-Y; Mock, JJ; Hill, RT; Chilkoti, A; Smith, DR; Lazarides, AA
Published in: ACS nano
November 2010

Surface plasmons supported by metal nanoparticles are perturbed by coupling to a surface that is polarizable. Coupling results in enhancement of near fields and may increase the scattering efficiency of radiative modes. In this study, we investigate the Rayleigh and Raman scattering properties of gold nanoparticles functionalized with cyanine deposited on silicon and quartz wafers and on gold thin films. Dark-field scattering images display red shifting of the gold nanoparticle plasmon resonance and doughnut-shaped scattering patterns when particles are deposited on silicon or on a gold film. The imaged radiation patterns and individual particle spectra reveal that the polarizable substrates control both the orientation and brightness of the radiative modes. Comparison with simulation indicates that, in a particle-surface system with a fixed junction width, plasmon band shifts are controlled quantitatively by the permittivity of the wafer or the film. Surface-enhanced resonance Raman scattering (SERRS) spectra and images are collected from cyanine on particles on gold films. SERRS images of the particles on gold films are doughnut-shaped as are their Rayleigh images, indicating that the SERRS is controlled by the polarization of plasmons in the antenna nanostructures. Near-field enhancement and radiative efficiency of the antenna are sufficient to enable Raman scattering cyanines to function as gap field probes. Through collective interpretation of individual particle Rayleigh spectra and spectral simulations, the geometric basis for small observed variations in the wavelength and intensity of plasmon resonant scattering from individual antenna on the three surfaces is explained.

Duke Scholars

Published In

ACS nano

DOI

EISSN

1936-086X

ISSN

1936-0851

Publication Date

November 2010

Volume

4

Issue

11

Start / End Page

6535 / 6546

Related Subject Headings

  • Surface Properties
  • Spectrum Analysis, Raman
  • Silicon
  • Semiconductors
  • Nanoscience & Nanotechnology
  • Metal Nanoparticles
  • Gold
  • Electric Impedance
  • Carbocyanines
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Chen, S.-Y., Mock, J. J., Hill, R. T., Chilkoti, A., Smith, D. R., & Lazarides, A. A. (2010). Gold nanoparticles on polarizable surfaces as Raman scattering antennas. ACS Nano, 4(11), 6535–6546. https://doi.org/10.1021/nn101644s
Chen, Shiuan-Yeh, Jack J. Mock, Ryan T. Hill, Ashutosh Chilkoti, David R. Smith, and Anne A. Lazarides. “Gold nanoparticles on polarizable surfaces as Raman scattering antennas.ACS Nano 4, no. 11 (November 2010): 6535–46. https://doi.org/10.1021/nn101644s.
Chen S-Y, Mock JJ, Hill RT, Chilkoti A, Smith DR, Lazarides AA. Gold nanoparticles on polarizable surfaces as Raman scattering antennas. ACS nano. 2010 Nov;4(11):6535–46.
Chen, Shiuan-Yeh, et al. “Gold nanoparticles on polarizable surfaces as Raman scattering antennas.ACS Nano, vol. 4, no. 11, Nov. 2010, pp. 6535–46. Epmc, doi:10.1021/nn101644s.
Chen S-Y, Mock JJ, Hill RT, Chilkoti A, Smith DR, Lazarides AA. Gold nanoparticles on polarizable surfaces as Raman scattering antennas. ACS nano. 2010 Nov;4(11):6535–6546.
Journal cover image

Published In

ACS nano

DOI

EISSN

1936-086X

ISSN

1936-0851

Publication Date

November 2010

Volume

4

Issue

11

Start / End Page

6535 / 6546

Related Subject Headings

  • Surface Properties
  • Spectrum Analysis, Raman
  • Silicon
  • Semiconductors
  • Nanoscience & Nanotechnology
  • Metal Nanoparticles
  • Gold
  • Electric Impedance
  • Carbocyanines