Synthesis and characterization of gold nanoparticle aggregates as novel substrates for surface-enhanced Raman scattering

Adam M. Schwartzberg; Chris D. Grant; A. Wolcott; R. Bogomolni; Jin Z. Zhang

doi:10.1117/12.506043

28 October 2003 Synthesis and characterization of gold nanoparticle aggregates as novel substrates for surface-enhanced Raman scattering

Adam M. Schwartzberg, Chris D. Grant, A. Wolcott, R. Bogomolni, Jin Z. Zhang

Author Affiliations +

Proceedings Volume 5221, Plasmonics: Metallic Nanostructures and Their Optical Properties; (2003) https://doi.org/10.1117/12.506043
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Novel gold nanoparticle aggregates have been synthesized using simple colloidal chemistry techniques. The electronic absorption spectra of the aggregates can be manipulated by controlling the synthetic conditions. The aggregates have been demonstrated for the first time to exhibit strong activity for surface-enhanced Raman scattering (SERS). SERS studies were performed using rhodamine 6G (R6G), a molecule which normally does not show SERS enhancement on gold surfaces, showed an enhancement factor on the order of 10⁹, which is similar to or better than most ensemble averaged SERS enhancement factors reported to date. The results demonstrate that these gold nanoparticle aggregates are promising for SERS applications in detection and analysis of molecules.

Citation Download Citation

Adam M. Schwartzberg, Chris D. Grant, A. Wolcott, R. Bogomolni, and Jin Z. Zhang "Synthesis and characterization of gold nanoparticle aggregates as novel substrates for surface-enhanced Raman scattering", Proc. SPIE 5221, Plasmonics: Metallic Nanostructures and Their Optical Properties, (28 October 2003); https://doi.org/10.1117/12.506043

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