Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/89760
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dc.contributor.authorYe, Yiyangen
dc.contributor.authorLiu, Zhenen
dc.contributor.authorYuan, Xuen
dc.contributor.authorChen, Tu Peien
dc.date.accessioned2018-10-18T04:47:43Zen
dc.date.accessioned2019-12-06T17:32:51Z-
dc.date.available2018-10-18T04:47:43Zen
dc.date.available2019-12-06T17:32:51Z-
dc.date.issued2018en
dc.identifier.citationYe, Y., Chen, T. P., Liu, Z., & Yuan, X. (2018). Effect of surface scattering of electrons on ratios of optical absorption and scattering to extinction of gold nanoshell. Nanoscale Research Letters, 13, 299-. doi:10.1186/s11671-018-2670-7en
dc.identifier.issn1931-7573en
dc.identifier.urihttps://hdl.handle.net/10356/89760-
dc.description.abstractGold nanoshell’s high light scattering and absorption at its resonance wavelength have found applications in biomedical imaging and photothermal therapy. However, at nanoscale, metallic material’s dielectric function is affected by nanoparticle’s size, mainly via a mechanism called surface scattering of conduction electrons. In this work, the effect of surface scattering of electrons on the ratios of optical absorption and scattering to extinction (which is the sum of the absorption and scattering) of gold nanoshell is investigated. Simulation results for several shell thicknesses are compared. It is found that the electrons’ surface scattering increases the optical absorption ratio, and the thinner the shell thickness, the larger the increase in the difference of the absorption ratio between the situations with and without the surface scattering considered. The increase of absorption ratio is then verified by comparing simulation results to experimental measurements for three nanoshells. The parameters of the simulations to fit the experimental measurements show that the damping of conduction electrons in metallic shell geometry is larger than that predicted by the billiard scattering model.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.format.extent11 p.en
dc.language.isoenen
dc.relation.ispartofseriesNanoscale Research Lettersen
dc.rights© 2018 The Author(s). This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en
dc.subjectDRNTU::Engineering::Electrical and electronic engineeringen
dc.subjectNanoshellen
dc.subjectSurface scatteringen
dc.titleEffect of surface scattering of electrons on ratios of optical absorption and scattering to extinction of gold nanoshellen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.identifier.doi10.1186/s11671-018-2670-7en
dc.description.versionPublished versionen
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