Sub-5 nm nanobowl gaps electrochemically templated by SiO2-coated Au nanoparticles as surface-enhanced Raman scattering hot spots

Haiqiong Wen; Lingyan Meng; Gezhi Kong; Huimin Yu; Zhilin Yang; Jiawen Hu

doi:10.1039/C3CC49454C

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Sub-5 nm nanobowl gaps electrochemically templated by SiO₂-coated Au nanoparticles as surface-enhanced Raman scattering hot spots†

Haiqiong Wen,^a Lingyan Meng,^b Gezhi Kong,^a Huimin Yu,^a Zhilin Yang*^b and Jiawen Hu*^a

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* Corresponding authors

^a State Key Laboratory for Chemo/Biosensing and Chemometrics, and College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
E-mail: jwhu@hnu.edu.cn
Fax: +86-731-85956121

^b Department of Physics, Xiamen University, Xiamen 361005, China
E-mail: zlyang@xmu.edu.cn

Abstract

Large-area submonolayer and monolayer Au nanoparticle (NP) arrays with sub-5 nm nanobowl gaps for giant electromagnetic enhancement were created by partially embedding SiO₂-coated Au NP arrays in an electrochemically deposited Au film, followed by the removal of the SiO₂ shells.

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Article information

DOI: https://doi.org/10.1039/C3CC49454C
Article type: Communication
Submitted: 12 Dec 2013
Accepted: 22 Jan 2014
First published: 23 Jan 2014

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Chem. Commun., 2014,50, 3958-3961

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Sub-5 nm nanobowl gaps electrochemically templated by SiO₂-coated Au nanoparticles as surface-enhanced Raman scattering hot spots

H. Wen, L. Meng, G. Kong, H. Yu, Z. Yang and J. Hu, Chem. Commun., 2014, 50, 3958 DOI: 10.1039/C3CC49454C

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Chemical Communications