Patterned SERS Active Substrate Fabricated by Dewetting of Silver Nanoparticles Solution

Chem. J. Chinese Universities

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Patterned SERS Active Substrate Fabricated by Dewetting of Silver Nanoparticles Solution

SONG Wei, ZHU Di-Fu, LI Zhi-Shi, LIU Hui-Hui, YANG Bai, ZHAO Bing*

State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China

Received:2007-06-27 Revised:1900-01-01 Online:2008-02-10 Published:2008-02-10
Contact: ZHAO Bing

Abstract

Abstract: We present a simple and controlled method for direct fabrication of ordered 2D arrays of Surface-enhance Raman scattering(SERS) rings and disks substrate. Silver rings and disks are fabricated on patterned self-assembled monolayers on Au substrate by dewetting the solution of CTAB-coated silver nanoparticles in CHCl₃. It is found that two different silver patterns assemblies are formed when the concentration of the silver nanoparticles in CHCl₃ solution changes. We characterized the formation and structure of these two different silver patterns assemblies using contact mode atomic force microscopy. Surface enhanced Raman mapping of 4-MPY SAM on this novel SERS active substrate are also investigated.

Key words: Dewetting, Pattern, Ag nanopartile, Surface-enhance Raman scattering(SERS), Raman mapping

CLC Number:

O657.37

TrendMD:

SONG Wei, ZHU Di-Fu, LI Zhi-Shi, LIU Hui-Hui, YANG Bai, ZHAO Bing*. Patterned SERS Active Substrate Fabricated by Dewetting of Silver Nanoparticles Solution[J]. Chem. J. Chinese Universities, doi: .

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Patterned SERS Active Substrate Fabricated by Dewetting of Silver Nanoparticles Solution

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