Synthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation

Abstract By using gold (Au) nanoparticles (NPs) as an optical near-field source under far-field illumination in combination with a silver (Ag) ion solution containing a photoinitiator, we coated Ag on Au NPs using a near-field (NF)-assisted process. We evaluated the change in the size of the NPs usi...

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Autores principales:	Takashi Yatsui, Felix Brandenburg, Benjamin Leuschel, Olivier Soppera
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8b32eb66437e4428a6e833e0cb55c3df
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spelling	oai:doaj.org-article:8b32eb66437e4428a6e833e0cb55c3df2021-12-02T13:19:20ZSynthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation10.1038/s41598-021-84944-w2045-2322https://doaj.org/article/8b32eb66437e4428a6e833e0cb55c3df2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84944-whttps://doaj.org/toc/2045-2322Abstract By using gold (Au) nanoparticles (NPs) as an optical near-field source under far-field illumination in combination with a silver (Ag) ion solution containing a photoinitiator, we coated Ag on Au NPs using a near-field (NF)-assisted process. We evaluated the change in the size of the NPs using transmission electron microscopy. Evaluation of the synthesized Ag volume over illumination power confirmed the squared power dependence of the NP volume with illumination using 808 nm light, i.e., a wavelength longer than the absorption edge wavelength of the photoinitiator molecules. The rate of volume increase was much lower than the plasmonic field enhancement effect. Therefore, the squared power dependency of the volume increase using a wavelength longer than the absorption edge wavelength originated from NF-assisted second-harmonic generation and the resulting excitation.Takashi YatsuiFelix BrandenburgBenjamin LeuschelOlivier SopperaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Takashi Yatsui Felix Brandenburg Benjamin Leuschel Olivier Soppera Synthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation
description	Abstract By using gold (Au) nanoparticles (NPs) as an optical near-field source under far-field illumination in combination with a silver (Ag) ion solution containing a photoinitiator, we coated Ag on Au NPs using a near-field (NF)-assisted process. We evaluated the change in the size of the NPs using transmission electron microscopy. Evaluation of the synthesized Ag volume over illumination power confirmed the squared power dependence of the NP volume with illumination using 808 nm light, i.e., a wavelength longer than the absorption edge wavelength of the photoinitiator molecules. The rate of volume increase was much lower than the plasmonic field enhancement effect. Therefore, the squared power dependency of the volume increase using a wavelength longer than the absorption edge wavelength originated from NF-assisted second-harmonic generation and the resulting excitation.
format	article
author	Takashi Yatsui Felix Brandenburg Benjamin Leuschel Olivier Soppera
author_facet	Takashi Yatsui Felix Brandenburg Benjamin Leuschel Olivier Soppera
author_sort	Takashi Yatsui
title	Synthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation
title_short	Synthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation
title_full	Synthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation
title_fullStr	Synthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation
title_full_unstemmed	Synthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation
title_sort	synthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8b32eb66437e4428a6e833e0cb55c3df
work_keys_str_mv	AT takashiyatsui synthesisofsilvernanostructureongoldnanoparticleusingnearfieldassistedsecondharmonicgeneration AT felixbrandenburg synthesisofsilvernanostructureongoldnanoparticleusingnearfieldassistedsecondharmonicgeneration AT benjaminleuschel synthesisofsilvernanostructureongoldnanoparticleusingnearfieldassistedsecondharmonicgeneration AT oliviersoppera synthesisofsilvernanostructureongoldnanoparticleusingnearfieldassistedsecondharmonicgeneration
_version_	1718393285988319232

Synthesis of silver nanostructure on gold nanoparticle using near field assisted second harmonic generation

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