Plasmonics

, Volume 6, Issue 2, pp 413–418

Enhanced Raman Scattering of Ultramarine on Au-coated Ge/Si-nanostructures

  • Elena Klyachkovskaya
  • Natalia Strekal
  • Inna Motevich
  • Svetlana Vaschenko
  • Anna Harbachova
  • Mikhail Belkov
  • Sergey Gaponenko
  • Christian Dais
  • Hans Sigg
  • Toma Stoica
  • Detlev Grützmacher
Article

DOI: 10.1007/s11468-011-9219-2

Cite this article as:
Klyachkovskaya, E., Strekal, N., Motevich, I. et al. Plasmonics (2011) 6: 413. doi:10.1007/s11468-011-9219-2

Abstract

Semiconductor self-assembled Ge-on-Si quantum dot structures coated with Au film were successfully employed as surface-enhanced Raman scattering (SERS) substrates to characterize ultramarine blue inorganic art pigment. To assign the bands and to reveal the enhancement mechanisms, the quantum-chemical calculations of vibration spectra of linear and cyclic model compound of SiO4 and AlO4 tetrahedra were carried out. The overtones are observed in the SERS spectra and the unharmonicity constants were estimated. The development of a series of new bands in SERS spectra of ultramarine are discussed in terms of electro-optical unharmonicity.

Keywords

Surface-enhanced Raman scatteringSelf-organized Ge/Si nanostructuresAu filmUltramarineOvertonesUnharmonicity constants

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Elena Klyachkovskaya
    • 1
  • Natalia Strekal
    • 2
  • Inna Motevich
    • 2
  • Svetlana Vaschenko
    • 1
  • Anna Harbachova
    • 1
  • Mikhail Belkov
    • 1
  • Sergey Gaponenko
    • 1
  • Christian Dais
    • 3
  • Hans Sigg
    • 3
  • Toma Stoica
    • 4
  • Detlev Grützmacher
    • 4
  1. 1.B.I. Stepanov Institute of Physics NASBMinskBelarus
  2. 2.Yanka Kupala Grodno State UniversityGrodnoBelarus
  3. 3.Paul Scherrer InstitutVilligenSwitzerland
  4. 4.Institute of Bio- And NanosystemsJülichGermany