Size dependence of the dielectric function of silicon-supported plasmonic gold nanoparticles
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F10%3A00046212" target="_blank" >RIV/00216224:14310/10:00046212 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Size dependence of the dielectric function of silicon-supported plasmonic gold nanoparticles
Original language description
Gold nanoparticles (NPs) are directly deposited on a Si(111) substrate by Ar sputtering to provide a semiconductor-based plasmonic platform. The Au NPs are characterized by interband transitions at energies above 2.5 eV, whose tails extend into the surface-plasmon resonance (SPR) region, hence affecting the SPR energy, amplitude, and broadening. Herein, we report the experimental evidence of the size dependence of the interband transitions for Au NPs supported on silicon and sapphire substrates by exploiting plasmonic ellipsometry. Providing the size dependence of the dielectric function of Au NPs in the extended spectral range of 190-1700 nm, and discussing the interconnection between the SPR and the interband transitions, this study as a whole represents a step ahead in the perspective of a better understanding of nanosize effect on optical properties and standardization of nanoparticles dielectric functions to rely on more accurate modeling of NPs behavior.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>R - Projekt Ramcoveho programu EK
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review B
ISSN
1098-0121
e-ISSN
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Volume of the periodical
82
Issue of the periodical within the volume
15
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
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UT code for WoS article
000283575600004
EID of the result in the Scopus database
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