Abstract
We study theoretically the optical properties of palladium nanodisks during hydrogen uptake. A combination of an ab initio quantum mechanical description of the Pd-H dielectric properties and a full electrodynamical study of light scattering in the H-modified Pd nanodisks allows us to trace the shift of the localized surface plasmon as a function of the H concentration in the Pd-H disk. We follow the evolution of the plasmon peak energy for different admixtures of the Pd-H α and β phases and interpret quantitatively the experimental sensitivity of the plasmon energy shift to the structural inhomogeneity upon H absorption. Our multiscale theoretical framework provides a solid background for plasmonic sensing of structural domains, as well as for identifying H saturation conditions in metal hydride systems.
| Original language | English |
|---|---|
| Pages (from-to) | 2556-2561 |
| Number of pages | 6 |
| Journal | Journal of Physical Chemistry Letters |
| Volume | 3 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 20 Sep 2012 |
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Keywords
- Hard Matter
- Optical Materials
- Plasmonics
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Multiscale theoretical modeling of plasmonic sensing of hydrogen uptake in palladium nanodisks. / Poyli, M. Ameen; Silkin, Vyacheslav Mikhaylovich; Chernov, I. P.; Echenique, P. M.; Muiño, R. Díez; Aizpurua, J.
In: Journal of Physical Chemistry Letters, Vol. 3, No. 18, 20.09.2012, p. 2556-2561.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Multiscale theoretical modeling of plasmonic sensing of hydrogen uptake in palladium nanodisks
AU - Poyli, M. Ameen
AU - Silkin, Vyacheslav Mikhaylovich
AU - Chernov, I. P.
AU - Echenique, P. M.
AU - Muiño, R. Díez
AU - Aizpurua, J.
PY - 2012/9/20
Y1 - 2012/9/20
N2 - We study theoretically the optical properties of palladium nanodisks during hydrogen uptake. A combination of an ab initio quantum mechanical description of the Pd-H dielectric properties and a full electrodynamical study of light scattering in the H-modified Pd nanodisks allows us to trace the shift of the localized surface plasmon as a function of the H concentration in the Pd-H disk. We follow the evolution of the plasmon peak energy for different admixtures of the Pd-H α and β phases and interpret quantitatively the experimental sensitivity of the plasmon energy shift to the structural inhomogeneity upon H absorption. Our multiscale theoretical framework provides a solid background for plasmonic sensing of structural domains, as well as for identifying H saturation conditions in metal hydride systems.
AB - We study theoretically the optical properties of palladium nanodisks during hydrogen uptake. A combination of an ab initio quantum mechanical description of the Pd-H dielectric properties and a full electrodynamical study of light scattering in the H-modified Pd nanodisks allows us to trace the shift of the localized surface plasmon as a function of the H concentration in the Pd-H disk. We follow the evolution of the plasmon peak energy for different admixtures of the Pd-H α and β phases and interpret quantitatively the experimental sensitivity of the plasmon energy shift to the structural inhomogeneity upon H absorption. Our multiscale theoretical framework provides a solid background for plasmonic sensing of structural domains, as well as for identifying H saturation conditions in metal hydride systems.
KW - Hard Matter
KW - Optical Materials
KW - Plasmonics
UR - http://www.scopus.com/inward/record.url?scp=84866626341&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866626341&partnerID=8YFLogxK
U2 - 10.1021/jz3007723
DO - 10.1021/jz3007723
M3 - Article
AN - SCOPUS:84866626341
VL - 3
SP - 2556
EP - 2561
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
SN - 1948-7185
IS - 18
ER -