Journal of Experimental and Theoretical Physics Letters

, Volume 74, Issue 6, pp 309–311

Raman scattering enhancement using crystallographic surface of a colloidal crystal

  • S. V. Gaponenko
  • A. A. Gaiduk
  • O. S. Kulakovich
  • S. A. Maskevich
  • N. D. Strekal
  • O. A. Prokhorov
  • V. M. Shelekhina
Condensed Matter

DOI: 10.1134/1.1421446

Cite this article as:
Gaponenko, S.V., Gaiduk, A.A., Kulakovich, O.S. et al. Jetp Lett. (2001) 74: 309. doi:10.1134/1.1421446

Abstract

Deposition of coinage metals on a crystallographic surface of a colloidal crystal is proposed with the aim of fabricating metal surfaces with a regular relief on a scale of 200–300 nm to get strong surface-enhanced Raman scattering (SERS). The approach is implemented through thin gold-film deposition on a surface of a crystal consisting of silica globules. Mitoxantrone molecules, a DNA intercalator, were used to prove high SERS efficiency of the structures proposed. As compared to other SERS-active substrates, metal-dielectric colloidal crystal structures possess well-defined surface parameters (globule diameter and film thickness), high stability and reproducibility. These advantages are important for systematic analysis of SERS mechanisms in mesoscopic structures and its application in single-molecule detection.

PACS numbers

81.16.−c;33.20.Fb82.70.Dd

Copyright information

© MAIK "Nauka/Interperiodica" 2001

Authors and Affiliations

  • S. V. Gaponenko
    • 1
  • A. A. Gaiduk
    • 1
  • O. S. Kulakovich
    • 1
  • S. A. Maskevich
    • 2
  • N. D. Strekal
    • 2
  • O. A. Prokhorov
    • 3
  • V. M. Shelekhina
    • 3
  1. 1.Institute of Molecular and Atomic PhysicsNational Academy of Sciences of BelarusMinskBelarus
  2. 2.Kupala State UniversityHrodnaBelarus
  3. 3.Institute for Powder MetallurgyMinskBelarus