Journal of Chemical Physics
Feedback | Help | Exit
The Journal of Chemical Physics
Search:
   
 
 
 
Previous Article
Second-harmonic generation from chemically modified Ge(111) interfaces
Second-harmonic generation (SHG) was used to investigate chemically modified surfaces of Ge(111). Chemical modification was achieved by wet-chemical covalent binding of decyl and sulfur directly to th...
Next Article
Effect of atomic disorder or chain length on the stability of photoinduced polarization inversion
The effect of atomic disorder or chain length on the stability of photoinduced polarization inversion has been studied. The atomic disorder was simulated by square-random or Gaussian-random model. It ...

Shape effects in plasmon resonance of individual colloidal silver nanoparticles

J. Chem. Phys. 116, 6755 (2002); doi:10.1063/1.1462610

Issue Date: 15 April 2002

You are not logged in to this journal. Log in

J. J. Mock, M. Barbic, D. R. Smith, D. A. Schultz, and S. Schultz
Department of Physics, University of California, San Diego, La Jolla, California 92093-0319
We present a systematic study of the effect of size and shape on the spectral response of individual silver nanoparticles. An experimental method has been developed that begins with the detection and characterization of isolated nanoparticles in the optical far field. The plasmon resonance optical spectrum of many individual nanoparticles are then correlated to their size and shape using high-resolution transmission electron microscopy. We find that specific geometrical shapes give distinct spectral responses. In addition, inducing subtle changes in the particles' morphology by heating causes a shift in the individual particle spectrum and provides a simple means of tuning the spectral response to a desired optical wavelength. Improved colloidal preparation methods could potentially lead to homogeneous populations of identical particle shapes and colors. These multicolor colloids could be used as biological labels, surface enhanced Raman scattering substrates, or near field optical microscopy sources covering the full range of wavelengths in the visible spectrum. ©2002 American Institute of Physics.
History: Received 13 November 2001; accepted 29 January 2002
Permalink: http://link.aip.org/link/?JCPSA6/116/6755/1
BUY THIS ARTICLE   (US$24)
Download HTML Download Sectioned HTML Download PDF (517 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 61.46.+w
    Structure of solids and liquids; crystallography Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
  • 78.67.Bf
    Optical properties, condensed-matter spectroscopy and other interactions of radiation and particles with condensed matter Optical properties of nanoscale materials and structures Nanocrystals and nanoparticles
  • 78.40.Kc
    Optical properties, condensed-matter spectroscopy and other interactions of radiation and particles with condensed matter Absorption and reflection spectra: visible and ultraviolet Metals, semimetals, and alloys
  • YEAR: 2002

RELATED DATABASES


To view database links for this article,
you need to log in.
To view database links for this article,
you need to log in.

PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (17)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. M. Fleischmann, P. J. Hendra, and A. J. McQuillan, Chem. Phys. Lett. 26, 163 (1974).
  2. S. Nie and S. R. Emory, Science 275, 1102 (1997).
  3. K. Kneipp, Y. Wang, H. Kneipp, L. T. Perelman, I. Itzkan, R. R. Dasari, and M. S. Feld, Phys. Rev. Lett. 78, 1667 (1997).
  4. M. Moskovits, Rev. Mod. Phys. 57, 783 (1985).
  5. S. Schultz, D. R. Smith, J. J. Mock, and D. A. Schultz, Proc. Natl. Acad. Sci. U.S.A. 97, 996 (2000).
  6. S. Schultz, J. Mock, D. R. Smith, and D. A. Schultz, J. of Clinical Ligand Assay 22, 214 (1999).
  7. T. J. Silva, S. Schultz, and D. Weller, Appl. Phys. Lett. 65, 658 (1994).
  8. O. Sqalli, M. P. Bernal, P. Hoffmann, and F. Marquis-Weible, Appl. Phys. Lett. 76, 2134 (2000).
  9. C. F. Bohren and D. R. Hoffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983).
  10. R. Zsigmondy, Colloids and the Ultramicroscope (1914).
  11. T. J. Silva, Ph.D. dissertation, University of California–San Diego, 1994;
    12. S. Schultz and T. J. Silva, NATO ASI-E Series, "Applied Sciences" (Kluwer Academic, New York, 1993).
  12. C. Sonnichen, S. Geier, N. E. Hecker et al., Appl. Phys. Lett. 77, 2949 (2000).
  13. R. Fuchs, Phys. Rev. B 11, 1732 (1975).
  14. J. P. Kottmann, O. J. F. Martin, D. R. Smith, and S. Schultz, New J. Phys. 2, 27.1 (2000).
  15. J. P. Kottmann, O. J. F. Martin, D. R. Smith, and S. Schultz, Chem. Phys. Lett. 341, 1 (2001).
  16. M. Jose Yacaman, J. A. Ascencio, H. B. Liu, and J. Gardea-Torresdey, J. Vac. Sci. Technol. B 19, 1091 (2001).
  17. Rongchao Jin, Yun Wei Cao, Chad A. Mirkin, K. L. Kelly, George C. Schatz, and J. G. Zheng, Science 294, 1901 (2001).

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.


Copyright © American Institute of Physics