Multilayered plasmonic nanostructures for solar energy harvesting

Optical properties of core-shell-shell Au@SiO2@Au nanostructures and their solar energy harvesting applications are theoretically investigated using Mie theory and heat transfer equations. The theoretical analysis associated with size-dependent modification of the bulk gold dielectric function agree...

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Bibliographic Details
Published inarXiv.org
Main Authors Phan, Anh D, Le, Nam B, Lien, Nghiem T H, Wakabayashi, Katsunori
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 11.08.2018
Subjects
Absorption cross sections
Energy absorption
Energy conversion efficiency
Energy harvesting
Gold
Heterostructures
Mie scattering
Nanostructure
Optical properties
Photovoltaic cells
Physics - Applied Physics
Physics - Materials Science
Silicon dioxide
Solar energy
Temperature dependence
Time dependence
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Summary:Optical properties of core-shell-shell Au@SiO2@Au nanostructures and their solar energy harvesting applications are theoretically investigated using Mie theory and heat transfer equations. The theoretical analysis associated with size-dependent modification of the bulk gold dielectric function agrees well with previous experimental results. We use the appropriate absorption cross-section to determine the solar energy absorption efficiency of the nano-heterostructures, which is strongly structure-dependent, and to predict the time-dependent temperature increase of the nanoshell solution under simulated solar irradiation. Comparisons to prior temperature measurements and theoretical evaluation of the solar power conversion efficiency are discussed to provide new insights into underlying mechanisms. Our approach would accelerate materials and structure testing in solar energy harvesting.
ISSN:2331-8422
DOI:10.48550/arxiv.1808.03755