Controlling the Growth Locations of Ag Nanoparticles at Nanoscale by Shifting LSPR Hotspots

Controlling chemical reactions by plasma is expected to be a new method for improving the structural properties of substrates. An Au nanojar array was prepared when Au was deposited onto a 2D polystyrene (PS) array. The site-selective chemical growth of Ag nanoparticle rings was realized around the...
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Autor*in:	Qi Zhu [verfasserIn] Xiaolong Zhang [verfasserIn] Yaxin Wang [verfasserIn] Aonan Zhu [verfasserIn] Renxian Gao [verfasserIn] Xiaoyu Zhao [verfasserIn] Yongjun Zhang [verfasserIn] Lei Chen [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	site-selective chemical growth lspr-assisted chemical reaction catalytic hotspots hotspots shift

Übergeordnetes Werk:	In: Nanomaterials - MDPI AG, 2012, 9(2019), 11, p 1553
Übergeordnetes Werk:	volume:9 ; year:2019 ; number:11, p 1553

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/nano9111553

Katalog-ID:	DOAJ039275523

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520			\|a Controlling chemical reactions by plasma is expected to be a new method for improving the structural properties of substrates. An Au nanojar array was prepared when Au was deposited onto a 2D polystyrene (PS) array. The site-selective chemical growth of Ag nanoparticle rings was realized around the Au nanojar necks by a local surface plasmon resonance (LSPR)-assisted chemical reaction. The catalytic hotspots in the nanostructure array could be controlled by both etching the nanojars and Au or TiO<sub<2</sub< sputtering onto the nanojars, which were confirmed by the growth sites of the Ag nanoparticle in the LSPR-assisted chemical reaction. The structure of the nanojars and the electric field distributions of the growing nanoparticles were simulated and analyzed using Finite-Difference Time-Domain. FDTD simulations showed that the changes in the nanojar shape led to the changed hotspot distributions. At the same time, tracking the hotspot shifts in the process of structural change was also achieved by the observation of Ag growth. Nanoarray structure prepared by LSPR-assisted chemical reaction is one of the hot fields in current research and is also of great significance for the application of Surface-Enhanced Raman Scattering.
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language	English
source	In Nanomaterials 9(2019), 11, p 1553 volume:9 year:2019 number:11, p 1553
sourceStr	In Nanomaterials 9(2019), 11, p 1553 volume:9 year:2019 number:11, p 1553
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institution	findex.gbv.de
topic_facet	site-selective chemical growth lspr-assisted chemical reaction catalytic hotspots hotspots shift Chemistry
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container_title	Nanomaterials
authorswithroles_txt_mv	Qi Zhu @@aut@@ Xiaolong Zhang @@aut@@ Yaxin Wang @@aut@@ Aonan Zhu @@aut@@ Renxian Gao @@aut@@ Xiaoyu Zhao @@aut@@ Yongjun Zhang @@aut@@ Lei Chen @@aut@@
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callnumber-first	Q - Science
author	Qi Zhu
spellingShingle	Qi Zhu misc QD1-999 misc site-selective chemical growth misc lspr-assisted chemical reaction misc catalytic hotspots misc hotspots shift misc Chemistry Controlling the Growth Locations of Ag Nanoparticles at Nanoscale by Shifting LSPR Hotspots
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topic_title	QD1-999 Controlling the Growth Locations of Ag Nanoparticles at Nanoscale by Shifting LSPR Hotspots site-selective chemical growth lspr-assisted chemical reaction catalytic hotspots hotspots shift
topic	misc QD1-999 misc site-selective chemical growth misc lspr-assisted chemical reaction misc catalytic hotspots misc hotspots shift misc Chemistry
topic_unstemmed	misc QD1-999 misc site-selective chemical growth misc lspr-assisted chemical reaction misc catalytic hotspots misc hotspots shift misc Chemistry
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title	Controlling the Growth Locations of Ag Nanoparticles at Nanoscale by Shifting LSPR Hotspots
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title_full	Controlling the Growth Locations of Ag Nanoparticles at Nanoscale by Shifting LSPR Hotspots
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author_browse	Qi Zhu Xiaolong Zhang Yaxin Wang Aonan Zhu Renxian Gao Xiaoyu Zhao Yongjun Zhang Lei Chen
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title_sort	controlling the growth locations of ag nanoparticles at nanoscale by shifting lspr hotspots
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title_auth	Controlling the Growth Locations of Ag Nanoparticles at Nanoscale by Shifting LSPR Hotspots
abstract	Controlling chemical reactions by plasma is expected to be a new method for improving the structural properties of substrates. An Au nanojar array was prepared when Au was deposited onto a 2D polystyrene (PS) array. The site-selective chemical growth of Ag nanoparticle rings was realized around the Au nanojar necks by a local surface plasmon resonance (LSPR)-assisted chemical reaction. The catalytic hotspots in the nanostructure array could be controlled by both etching the nanojars and Au or TiO<sub<2</sub< sputtering onto the nanojars, which were confirmed by the growth sites of the Ag nanoparticle in the LSPR-assisted chemical reaction. The structure of the nanojars and the electric field distributions of the growing nanoparticles were simulated and analyzed using Finite-Difference Time-Domain. FDTD simulations showed that the changes in the nanojar shape led to the changed hotspot distributions. At the same time, tracking the hotspot shifts in the process of structural change was also achieved by the observation of Ag growth. Nanoarray structure prepared by LSPR-assisted chemical reaction is one of the hot fields in current research and is also of great significance for the application of Surface-Enhanced Raman Scattering.
abstractGer	Controlling chemical reactions by plasma is expected to be a new method for improving the structural properties of substrates. An Au nanojar array was prepared when Au was deposited onto a 2D polystyrene (PS) array. The site-selective chemical growth of Ag nanoparticle rings was realized around the Au nanojar necks by a local surface plasmon resonance (LSPR)-assisted chemical reaction. The catalytic hotspots in the nanostructure array could be controlled by both etching the nanojars and Au or TiO<sub<2</sub< sputtering onto the nanojars, which were confirmed by the growth sites of the Ag nanoparticle in the LSPR-assisted chemical reaction. The structure of the nanojars and the electric field distributions of the growing nanoparticles were simulated and analyzed using Finite-Difference Time-Domain. FDTD simulations showed that the changes in the nanojar shape led to the changed hotspot distributions. At the same time, tracking the hotspot shifts in the process of structural change was also achieved by the observation of Ag growth. Nanoarray structure prepared by LSPR-assisted chemical reaction is one of the hot fields in current research and is also of great significance for the application of Surface-Enhanced Raman Scattering.
abstract_unstemmed	Controlling chemical reactions by plasma is expected to be a new method for improving the structural properties of substrates. An Au nanojar array was prepared when Au was deposited onto a 2D polystyrene (PS) array. The site-selective chemical growth of Ag nanoparticle rings was realized around the Au nanojar necks by a local surface plasmon resonance (LSPR)-assisted chemical reaction. The catalytic hotspots in the nanostructure array could be controlled by both etching the nanojars and Au or TiO<sub<2</sub< sputtering onto the nanojars, which were confirmed by the growth sites of the Ag nanoparticle in the LSPR-assisted chemical reaction. The structure of the nanojars and the electric field distributions of the growing nanoparticles were simulated and analyzed using Finite-Difference Time-Domain. FDTD simulations showed that the changes in the nanojar shape led to the changed hotspot distributions. At the same time, tracking the hotspot shifts in the process of structural change was also achieved by the observation of Ag growth. Nanoarray structure prepared by LSPR-assisted chemical reaction is one of the hot fields in current research and is also of great significance for the application of Surface-Enhanced Raman Scattering.
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container_issue	11, p 1553
title_short	Controlling the Growth Locations of Ag Nanoparticles at Nanoscale by Shifting LSPR Hotspots
url	https://doi.org/10.3390/nano9111553 https://doaj.org/article/3f553f25fbfd4118aedca95747baff26 https://www.mdpi.com/2079-4991/9/11/1553 https://doaj.org/toc/2079-4991
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