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Title of Journal: Optoelectron Lett

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Abbravation: Optoelectronics Letters

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Tianjin University of Technology

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DOI

10.1007/s00397-010-0521-2

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1993-5013

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Gold nanoparticlesdecorated single silver nanowir

Authors: Enzhong Tan
Publish Date: 2014/07/08
Volume: 10, Issue: 4, Pages: 241-243
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Abstract

A novel surfaceenhanced Raman scattering SERSactive substrate based on Au nanoparticles AuNPscoated silver nanowire AgNW is obtained by an effective and simple method The results show that the hybrid structures prepared by this method are powerful SERSactive substrates for the detection of malachite green MG molecules with the limit of 1 nmol/L The excellent enhancing ability mainly comes from two kinds of hot spots One is from the gaps among the adjacent AuNPs and the other is the presence of zone between AuNPs and AgNW In particular the AuNPscoated AgNW can be viewed through the objective of the confocal Raman spectrometer due to the length of the AgNW reaches microns which can improve the repeatability of detection Moreover it is of great significance in research of SERS mechanism and application

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