Enhancement of surface enhanced Raman scattering activity of Au nanoparticles through the mesostructured metallic nanoparticle arrays

Enhancement of surface enhanced Raman scattering activity of Au nanoparticles through the mesostructured metallic nanoparticle arrays

A self-assembly template with a photoreduction agent embedded along mesostructured silicate-surfactant channels is prepared at the air-water interface. The unique template allows uniform and continuous uptake of metallic precursors into the silicate-surfactant channels from the solution...

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Main Authors: Shan-Chi Kuo, Jin-Jia Tasi, Jun-Sian Li, Zheng-Hui Hou, Cheng-Han Li, U-Ser Jeng, Ying-Huang Lai
Format: Article
Language:English
Published: AIP Publishing LLC 2014-11-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4899116
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recordtype oai_dc
spelling doaj-art-4c5e12ea9b2f471591161ca12224ec0d2018-09-02T04:26:06ZengAIP Publishing LLCAPL Materials2166-532X2014-11-01211113310113310-710.1063/1.4899116012493APMEnhancement of surface enhanced Raman scattering activity of Au nanoparticles through the mesostructured metallic nanoparticle arraysShan-Chi Kuo0Jin-Jia Tasi1Jun-Sian Li2Zheng-Hui Hou3Cheng-Han Li4U-Ser Jeng5Ying-Huang Lai6Department of Chemistry, Tunghai University, Taichung 407, TaiwanDepartment of Chemistry, Tunghai University, Taichung 407, TaiwanDepartment of Chemistry, Tunghai University, Taichung 407, TaiwanDepartment of Chemistry, Tunghai University, Taichung 407, TaiwanDepartment of Chemistry, Tunghai University, Taichung 407, TaiwanNational Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu 300, TaiwanDepartment of Chemistry, Tunghai University, Taichung 407, Taiwan A self-assembly template with a photoreduction agent embedded along mesostructured silicate-surfactant channels is prepared at the air-water interface. The unique template allows uniform and continuous uptake of metallic precursors into the silicate-surfactant channels from the solution subphase. Upon UV irradiation, the metallic precursors result in near-monodisperse nanoparticles homogeneously arrayed in the mesostructured polyoxometalated-silicate-surfactant (PSS) channels until saturation. With three dimensionally densely packed Au NPs of ca. 1.7 nm in the PSS template, hence a very high number density of surface-enhanced Raman scattering (SERS) hot-spots and large absorptive volume, we show that impressive SERS can be measured with 4-nitrothiophenol adsorbed to Au-NPs@PSS. http://dx.doi.org/10.1063/1.4899116
institution Open Data Bank
collection Open Access Journals
building Directory of Open Access Journals
language English
format Article
author Shan-Chi Kuo
Jin-Jia Tasi
Jun-Sian Li
Zheng-Hui Hou
Cheng-Han Li
U-Ser Jeng
Ying-Huang Lai
spellingShingle Shan-Chi Kuo
Jin-Jia Tasi
Jun-Sian Li
Zheng-Hui Hou
Cheng-Han Li
U-Ser Jeng
Ying-Huang Lai
Enhancement of surface enhanced Raman scattering activity of Au nanoparticles through the mesostructured metallic nanoparticle arrays
APL Materials
author_facet Shan-Chi Kuo
Jin-Jia Tasi
Jun-Sian Li
Zheng-Hui Hou
Cheng-Han Li
U-Ser Jeng
Ying-Huang Lai
author_sort Shan-Chi Kuo
title Enhancement of surface enhanced Raman scattering activity of Au nanoparticles through the mesostructured metallic nanoparticle arrays
title_short Enhancement of surface enhanced Raman scattering activity of Au nanoparticles through the mesostructured metallic nanoparticle arrays
title_full Enhancement of surface enhanced Raman scattering activity of Au nanoparticles through the mesostructured metallic nanoparticle arrays
title_fullStr Enhancement of surface enhanced Raman scattering activity of Au nanoparticles through the mesostructured metallic nanoparticle arrays
title_full_unstemmed Enhancement of surface enhanced Raman scattering activity of Au nanoparticles through the mesostructured metallic nanoparticle arrays
title_sort enhancement of surface enhanced raman scattering activity of au nanoparticles through the mesostructured metallic nanoparticle arrays
publisher AIP Publishing LLC
series APL Materials
issn 2166-532X
publishDate 2014-11-01
description A self-assembly template with a photoreduction agent embedded along mesostructured silicate-surfactant channels is prepared at the air-water interface. The unique template allows uniform and continuous uptake of metallic precursors into the silicate-surfactant channels from the solution subphase. Upon UV irradiation, the metallic precursors result in near-monodisperse nanoparticles homogeneously arrayed in the mesostructured polyoxometalated-silicate-surfactant (PSS) channels until saturation. With three dimensionally densely packed Au NPs of ca. 1.7 nm in the PSS template, hence a very high number density of surface-enhanced Raman scattering (SERS) hot-spots and large absorptive volume, we show that impressive SERS can be measured with 4-nitrothiophenol adsorbed to Au-NPs@PSS.
url http://dx.doi.org/10.1063/1.4899116
_version_ 1612657583619833856

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