The interfacing structural effect of Ag/graphene oxide nanohybrid films on surface enhanced Raman scatteringElectronic supplementary information (ESI) available: Additional analytical data and experimental procedure. See DOI: 10.1039/c7nr00308k
The interfacing structural effect of Ag/graphene oxide (GO) nanohybrid films on SERS was investigated by using Ag nanostructures immobilized on polyallylamine hydrochloride (PAA) functionalized-GO and reduced GO (RGO) films. We found that the electron transfer from Ag nanostructures to GO derivative...
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Main Authors | , , , , |
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Format | Journal Article |
Language | English |
Published |
11.05.2017
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Online Access | Get full text |
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Summary: | The interfacing structural effect of Ag/graphene oxide (GO) nanohybrid films on SERS was investigated by using Ag nanostructures immobilized on polyallylamine hydrochloride (PAA) functionalized-GO and reduced GO (RGO) films. We found that the electron transfer from Ag nanostructures to GO derivatives dominantly occurred at the interfaces between Ag nanostructures and the sp
2
carbon domains of GO and RGO films. By utilizing 4-aminothiophenol (4-ATP) as a Raman probe, it was revealed that this electron transfer process augmented the enhancement factor (EF) of 4-ATP up to ∼1.8 fold on Ag/PAA-RGO nanohybrid films compared to Ag/PAA-GO nanohybrid films with the increasing interfacing area between Ag nanostructures and the sp
2
carbon domains of GO derivatives through wet-chemical processes.
The interfacing structural influence of Ag/GO nanohybrid films on their surface enhanced Raman scattering (SERS) was systematically investigated to reveal the details of the enhancement mechanism and develop an efficient SERS platform. |
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Bibliography: | Electronic supplementary information (ESI) available: Additional analytical data and experimental procedure. See DOI 10.1039/c7nr00308k |
ISSN: | 2040-3364 2040-3372 |
DOI: | 10.1039/c7nr00308k |