scholarly journals Graphene sandwiched platform for surface-enhanced Raman scattering

RSC Advances ◽  
2017 ◽  
Vol 7 (78) ◽  
pp. 49303-49308 ◽  
Author(s):  
Yuan Zhao ◽  
Xiyu Li ◽  
Lichun Zhang ◽  
Binhua Chu ◽  
Qiyi Liu ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Gold Nanoparticle ◽  
Sandwich Structure ◽  
High Sensitivity ◽  
Surface Enhanced Raman Scattering ◽  
Monolayer Graphene ◽  
Good Reproducibility ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

The gold nanoparticle–monolayer graphene–silver nanoarray sandwich structure exhibits excellent SERS activity of high sensitivity and good reproducibility.

Polarization Dependence of Surface-Enhanced Raman Scattering in Gold Nanoparticle−Nanowire Systems

Nano Letters ◽  
2008 ◽  
Vol 8 (8) ◽  
pp. 2497-2502 ◽  
Author(s):  
Hong Wei ◽  
Feng Hao ◽  
Yingzhou Huang ◽  
Wenzhong Wang ◽  
Peter Nordlander ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Gold Nanoparticle ◽  
Surface Enhanced Raman Scattering ◽  
Polarization Dependence ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Detection of Organic Substances by a SERS Method Using a Special Ag-Poly(Chloro-P-Xylylene)-Ag Sandwich Substrate

Coatings ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 799
Author(s):  
Irina Boginskaya ◽  
Aliia Gainutdinova ◽  
Alexey Gusev ◽  
Karen Mailyan ◽  
Anton Mikhailitsyn ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Sandwich Structures ◽  
Control Sample ◽  
Film Surface ◽  
High Sensitivity ◽  
Surface Enhanced Raman Scattering ◽  
Silver Layer ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Spectroscopy based on surface enhanced Raman scattering (SERS) is widely used as a method with extremely high sensitivity for molecular and chemical analysis. We have developed thin-film sandwich structures, in which, when used as sensitive elements for detecting organic compounds at low concentrations, high-amplitude spectra of surface enhanced Raman scattering are observed. Using gas-phase cryochemical synthesis and thermal sputtering in vacuum, SERS active sandwich structures Ag–poly(chloro-p-xylylene)–Ag (Ag–PCPX–Ag) were obtained. In the process of creating sandwich structures, the upper silver film takes the form of a complex island topology with submicron sizes. A series of samples were made with different thicknesses of the polymer and upper silver layers. SERS spectra of the analyte chemically adsorbed on the film surface were obtained, demonstrating a significant amplification (up to 104) compared with the control sample. The dependence of the gain on the silver concentration is characterized by a maximum polymer layer thickness of 600 nm and a 30 nm thick upper silver layer. A selective amplification of the low molecular weight compound spectra with respect to proteins was observed. A semi-empirical model is proposed that is in good agreement with the experimental results.

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