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Raman Scattering Enhancement Using Au/SiGe and Au/Ge Nanostructures

  • A. S. MatsukovichEmail author
  • O. Y. Nalivaiko
  • K. V. Chizh
  • S. V. Gaponenko
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Raman scattering enhancement is shown using Au/SiGe and Au/Ge substrates obtained by chemical deposition of SiGe and Ge layers from the gas phase under reduced pressure on silicon substrates and the thermal deposition of gold. AFM image analysis showed cone-shaped nanorods formed on the surface of the substrates. These nanostructures permit us to obtain Raman scattering enhancement of mitoxanthrone (C = 10–5 M) of at least two or three orders of magnitude. Excitation at 785 nm gave additional enhancement of the SERS signal by a factor of 1.7–4.3 for the Au/Ge substrates and of 1.5–5.5 for the Au/SiGe substrates.

Keywords

cone-shaped nanorods silicon germanium gold surface-enhanced Raman scattering 

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • A. S. Matsukovich
    • 1
    Email author
  • O. Y. Nalivaiko
    • 2
  • K. V. Chizh
    • 3
  • S. V. Gaponenko
    • 1
  1. 1.B. I. Stepanov Institute of Physics of the National Academy of Sciences of BelarusMinskBelarus
  2. 2.JSC Integral Holding CompanyMinskBelarus
  3. 3.A. M. Prokhorov General Physics Institute, Russian Academy of SciencesMoscowRussia

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