Dependence of a surface plasmon resonance absorption band on the concentration of gold nanoparticles in carbon-bearing matrixes
https://doi.org/10.29235/1561-2430-2019-55-2-232-241
Abstract
For fullerene matrixes doped by gold nanoparticles we have established experimentally a miss of a red concentration-induced shift of surface plasmon resonance absorption band maximum. Theoretical modeling has been made for spectral characteristics of carbon–bearing nanostructures. Numerical calculations of extinction factors for a spherical metallic particle in an absorbing surrounding medium were based on the Mie theory. Transmission spectra coefficients of densely packed plasmonic nanoparticles monolayers were calculated with the use of the single coherent scattering approximation modified for absorbing matrices. Thin-film Au-air and Au–C60 nanostructures have been fabricated on glass and quartz substrates by thermal evaporation and condensation in vacuum at an air pressure of 2 · 10–3 Pа. The surface mass density of Au into Au–C60 nanostructures was varied in the range (3.86–7.98) · 10–6 g/cm2. The comparison of theoretical and experimental data allowed making a conclusion that the absorbency in carbon-bearing matrix leads to the attenuation of lateral electrodynamics coupling and blocks collective plasmon resonance in densely packed gold nanostructures.
About the Authors
R. A. Dynich
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Roman A. Dynich – Ph. D. (Physics and Mathematics), Senior Researcher of the Center of Photonics of Atoms and Molecules Structures
68-2, Nezavisimosti Ave., 220072, Minsk, Republic of Belarus
A. D. Zamkovets
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Anatoly D. Zamkovets – Ph. D. (Physics and Mathematics), Senior Researcher of the Center of Photonics of Atoms and Molecules Structures
68-2, Nezavisimosti Ave., 220072, Minsk, Republic of Belarus
A. N. Ponyavina
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Alina N. Ponyavina – Dr. Sc. (Physics and Mathematics), Associate Professor, Chief Researcher of the Center of Photonics of Atoms and Molecules Structures
68-2, Nezavisimosti Ave., 220072, Minsk, Republic of Belarus
E. М. Shpilevsky
A. V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus
Belarus
Belarus
Eduard M. Shpilevsky – Ph. D. (Physics and Mathematics), Leading Researcher at the Laboratory of Synthesis and Analysis of Micro- and Nanoscale Materials
15, P. Brovka Str., 220072, Minsk, Republic of Belarus
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