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Russian Journal of Physical Chemistry B

, Volume 13, Issue 3, pp 539–542 | Cite as

Anisotropy of Differential Spectra of Gold Nanoparticle Absorption in a TiO2 Matrix: Electron Injection into the TiO2 Conduction Band

  • A. N. Kostrov
  • A. V. Aybush
  • F. E. Gostev
  • I. V. Shelaev
  • A. A. Titov
  • V. A. NadtochenkoEmail author
CHEMICAL PHYSICS OF NANOMATERIALS
  • 5 Downloads

Abstract

The dynamics of the differential absorption spectra of spherical gold nanoparticles embedded in a TiO2 matrix and in water after the excitation of a plasmon resonance is studied by femtosecond laser spectroscopy. It is shown that spherical gold nanoparticles in a TiO2 matrix exhibit an anisotropic response, which is recorded in differential absorption spectra after their excitation by a femtosecond pulse into the plasmon resonance band of gold. The observed anisotropy of the signal is explained by the spherically nonsymmetrical distribution of the electron injected into the TiO2 matrix.

Keywords:

femtosecond spectroscopy plasmon resonance gold nanoparticles anisotropy 

Notes

FUNDING

This work was supported by the Russian Foundation for Basic Research, project no. 17-03-00746.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. N. Kostrov
    • 1
  • A. V. Aybush
    • 1
  • F. E. Gostev
    • 1
  • I. V. Shelaev
    • 1
  • A. A. Titov
    • 1
  • V. A. Nadtochenko
    • 1
    • 2
    Email author
  1. 1.Semenov Institute of Chemical Physics, Russian Academy of SciencesMoscowRussia
  2. 2.Lomonosov Moscow State UniversityMoscowRussia

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