Plasmonic nano-shells: atomistic discrete interaction versus classic electrodynamics models

Physical Chemistry Chemical Physics : PCCP
Vadim I ZakomirnyiHans Ågren

Abstract

Using the extended discrete interaction model and Mie theory, we investigate the tunability of the optical polarizability of small metallic nano-shells. We show that the spectral positions of symmetric and antisymmetric dipolar plasmon resonances vary with the ratio of particle radius to hole radius in a manner similar to one predicted for uniform metallic nano-shells using a semiclassical approach of two coupled harmonic oscillators. We show that, according to the extended discrete interaction model, the dipolar plasmon resonances are also present for nano-shells in the 2-13 nm size region and show the same functional dependence seen for larger nano-shells. Using previously fitted data from experiment, we can predict the size-dependence of the plasma frequency for nano-shells in the 1-15 nm size region. We find that Mie theory, which utilizes the electron mean free path correction for the permittivity, is not able to reproduce the same functional form of the dipolar modes for the nano-shells of the same sizes.

References

Aug 15, 1996·Physical Review. B, Condensed Matter·K Yabana, G F Bertsch
Sep 8, 2005·Journal of the American Chemical Society·Amar S KumbharGeorge Chumanov
Jul 21, 2006·The Journal of Physical Chemistry. B·Kevin C SeeTerrence G Vargo
Aug 8, 2008·Nature Nanotechnology·Laurene TetardThomas Thundat
Mar 23, 2012·Nature·Jonathan A SchollJennifer A Dionne
Jun 25, 2015·Physical Chemistry Chemical Physics : PCCP·Hans-Christian Weissker, Xóchitl López-Lozano
Jun 7, 2012·The Journal of Physical Chemistry Letters·Emilie RingeLaurence D Marks
Jan 5, 2018·ACS Nano·Sebastian BaurAlejandro Manjavacas
Nov 9, 2018·Journal of Chemical Theory and Computation·Rajarshi Sinha-RoyHans-Christian Weissker

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Citations

Dec 15, 2020·Physical Chemistry Chemical Physics : PCCP·Lasse K SørensenHans Ågren
Nov 13, 2021·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Piero LafioscaChiara Cappelli

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Methods Mentioned

BETA
light scattering
surface plasmon resonance
electron

Software Mentioned

ex
SCA
DIM
TDLDA

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