Surface-enhanced Raman scattering efficiency of truncated tetrahedral Ag nanoparticle arrays mediated by electromagnetic couplings

2006 ◽  
Vol 88 (14) ◽  
pp. 143121 ◽  
Author(s):  
Monica Baia ◽  
Lucian Baia ◽  
Simion Astilean ◽  
Juergen Popp
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Nanoparticle Arrays ◽  
Ag Nanoparticle ◽  
Scattering Efficiency ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Synthesis and Near-Field Enhancement of Composite Nanoarrays Based on Electrodeposition and in Situ Reaction

NANO ◽  
2021 ◽  
Author(s):  
Jing Wu ◽  
Jiali Shen ◽  
Jinghuai Fang ◽  
Lu Xu
Keyword(s):  
Synergistic Effect ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Metal Nanostructures ◽  
Nanoparticle Arrays ◽  
Ag Nanoparticle ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Since the morphology and element composition of metal nanostructures strongly affect the surface plasma oscillation characteristics, it has been widely concerned in surface enhanced Raman scattering (SERS). Herein, we proposed a novel route to fabricate composite Au/Ag nanoparticle arrays with synergistic effect for electromagnetic enhancement. Ag nanoparticles were electrodeposited onto a home-made template with highly ordered bowl-like pits. After a novel method of “confined annealing”, we further achieved well-regulated spherical Ag NP arrays, and the composite Au/Ag nanoparticle arrays were finally obtained via in situ replacement. The fabricated composite nanostructures showed stable and sensitive surface enhanced Raman scattering (SERS) performance mainly due to the synergistic effect and abundant “hot spots”, with the enhancement factor (EF) of [Formula: see text] for crystal violet (CV) molecules. In addition, this simple and effective preparation process greatly improved the uniformity of three-dimensional nanostructures, providing a new idea for further improving the stability of SERS signals.

scholarly journals Fabrication of transparent composites for non-invasive Surface Enhanced Raman Scattering (SERS) analysis of modern art works

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Abeer Alyami ◽  
Antonio Mirabile ◽  
Daniela Iacopino
Keyword(s):  
Raman Scattering ◽  
Self Assembly ◽  
Surface Enhanced Raman Scattering ◽  
Ag Nanoparticle ◽  
Non Invasive ◽  
Enhanced Sensitivity ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Invaluable Tool ◽  
Enhanced Raman Scattering

Abstract Surface Enhanced Raman Scattering (SERS) has become an invaluable tool for the identification of colorants in artworks, due to its enhanced sensitivity and ability to quench fluorescence interference compared to Raman spectroscopy. However, the application of SERS to artwork analysis is still limited by its inherent invasiveness and the need for extraction procedures. In this work non-invasive transparent SERS probes were fabricated by self-assembly of Ag nanoparticles into glass and PDMS surfaces and used for identification of dye content in artistic drawings. SERS measurements were performed directly on the selected analytical surfaces by laser back illumination through the SERS probe. The non-invasiveness of fabricated probes was tested by optical microscopy. It was found that Ag nanoparticle/glass probes left no Ag nanoparticle residue after four consecutive depositions on sacrificial surfaces, whereas Ag nanoparticle/PDMS composites could be deposited and subsequently peeled off the analytical surfaces leaving no contamination traces. The high conformability, flexibility and transparency of Ag nanoparticle/PDMS composites enabled good adhesion to the surface of analyzed artistic drawings and therefore the generation of in situ SERS spectra from artistic drawings. The use of this method allowed identification of main dye components in real artworks comprising a red BIC ballpoint drawing and a Japanese woodblock print.

CTAB micelles assisted rGO–AgNP hybrids for SERS detection of polycyclic aromatic hydrocarbons

2015 ◽  
Vol 17 (33) ◽  
pp. 21158-21163 ◽  
Author(s):  
Meng Jiang ◽  
Zhijiang Qian ◽  
Xufeng Zhou ◽  
Xing Xin ◽  
Jinghua Wu ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Raman Scattering ◽  
Aromatic Hydrocarbons ◽  
Surface Enhanced Raman Scattering ◽  
Ag Nanoparticle ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Polycyclic Aromatic ◽  
Enhanced Raman Scattering

A facile and convenient strategy to detect polycyclic aromatic hydrocarbons is presented, using graphene–Ag nanoparticle hybrids as a surface-enhanced Raman scattering substrate.

scholarly journals Hollow Au/Ag nanostars displaying broad plasmonic resonance and high surface-enhanced Raman sensitivity

Nanoscale ◽  
2015 ◽  
Vol 7 (32) ◽  
pp. 13629-13637 ◽  
Author(s):  
Adianez Garcia-Leis ◽  
Armida Torreggiani ◽  
Jose Vicente Garcia-Ramos ◽  
Santiago Sanchez-Cortes
Keyword(s):  
Raman Scattering ◽  
High Surface ◽  
Surface Enhanced Raman Scattering ◽  
Plasmonic Resonance ◽  
Scattering Efficiency ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Bimetallic Au/Ag hollow nanostar (HNS) nanoparticles and their surface-enhanced Raman scattering efficiency was tested with different morphologies were prepared in this work.

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