Surface-enhanced Raman Scattering Substrates Prepared by Magnetron Sputtering Using Anodized Titanium Oxide Nanotube Ends as Template

2013 ◽  
Author(s):  
Wenjun Zhang ◽  
Ming Xu ◽  
Xuming Zhang ◽  
Paul K Chu
Keyword(s):  
Magnetron Sputtering ◽  
Raman Scattering ◽  
Titanium Oxide ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Anodized Titanium

scholarly journals Cubic Silver Nanoparticles Fixed on TiO2 Nanotubes as Simple and Efficient Substrates for Surface Enhanced Raman Scattering

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3373 ◽  
Author(s):  
Robert Ambroziak ◽  
Marcin Hołdyński ◽  
Tomasz Płociński ◽  
Marcin Pisarek ◽  
Andrzej Kudelski
Keyword(s):  
Raman Scattering ◽  
Titanium Oxide ◽  
Tio2 Nanotubes ◽  
Surface Enhanced Raman Scattering ◽  
Plasmonic Nanoparticles ◽  
Plasmonic Nanostructures ◽  
Titanium Oxide Nanotubes ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

In this work we show that ordered freestanding titanium oxide nanotubes (TiO2 NT) may be used as substrates for the simple and efficient immobilization of anisotropic plasmonic nanoparticles. This is important because anisotropic plasmonic nanostructures usually give greater spectral enhancement than spherical nanoparticles. The size of the pores in a layer of titanium oxide nanotubes can be easily fitted to the size of many silver plasmonic nanoparticles highly active in SERS (surface-enhanced Raman scattering) spectroscopy (for example, silver nanocubes with an edge length of ca. 45 nm), and hence, the plasmonic nanoparticles deposited can be strongly anchored in such a titanium oxide substrate. The tubular morphology of the TiO2 substrate used allows a specific arrangement of the silver plasmonic nanoparticles that may create many so-called SERS hot spots. The SERS activity of a layer of cubic Ag nanoparticles (AgCNPs) deposited on a tubular TiO2 substrate (AgCNPs@TiO2 NT) is about eight times higher than that of the standard electrochemically nanostructured surface of a silver electrode (produced by oxidation reduction cycling). Furthermore, a super hydrophilic character of the TiO2 nanotubes surface allows for a uniform distribution of AgCNPs, which are deposited from an aqueous suspension. The new AgCNPs@TiO2 NT hybrid layer ensures a good reproducibility of SERS measurements and exhibits a higher temporal stability of the achievable total SERS enhancement factor—one that is far better than standard SERS silver substrates. To characterize the morphology and chemical composition of such evidently improved SERS platforms thus received, we applied microscopic techniques (SEM, and scanning transmission electron microscopy (STEM)) and surface analytical techniques (Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS)).

Ag-Cu Nanoparticles Encaptured by Graphene with Magnetron Sputtering and CVD for Surface-Enhanced Raman Scattering

Plasmonics ◽  
2016 ◽  
Vol 11 (6) ◽  
pp. 1495-1504 ◽  
Author(s):  
Zhang Jie ◽  
Zhang Pengyue ◽  
Ding Yimin ◽  
Zhang Xiaolei ◽  
Quan Jiamin ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Cu Nanoparticles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Surface-enhanced Raman scattering substrate of silver nanoparticles depositing on AAO template fabricated by magnetron sputtering

Vacuum ◽  
2010 ◽  
Vol 84 (12) ◽  
pp. 1415-1418 ◽  
Author(s):  
Noppadon Nuntawong ◽  
Mati Horprathum ◽  
Pitak Eiamchai ◽  
Krongkamol Wong-ek ◽  
Viyapol Patthanasettakul ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Magnetron Sputtering ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Aao Template ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Study on Surface-Enhanced Raman Scattering Substrate Based on Titanium Oxide Nanorods Coated with Gold Nanoparticles

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Xiaodong Wang ◽  
Xiulan Cheng ◽  
Xufeng Yu ◽  
Xueling Quan
Keyword(s):  
Gold Nanoparticles ◽  
Raman Scattering ◽  
Titanium Oxide ◽  
Surface Enhanced Raman Scattering ◽  
Au Nps ◽  
Oxide Nanorods ◽  
Relative Standard ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

A 3D surface-enhanced Raman scattering (SERS) substrate based on titanium oxide nanorods (TiOx-NRs) coated with gold nanoparticles (Au-NPs) was fabricated by a simple hydrothermal, no-template process. The nanostructure of TiOx-NRs influenced by the concentrations of hydrochloric (HCl) acid and sodium chloride (NaCl) was studied in detail. The substrate showed the strongest Raman enhancement, when the diameters of Au-NPs were around 40 nm and the gaps of Au-NPs were in the range of 5 nm to 10 nm. The surface electric field of our substrate was examined by finite-different time-domain (FDTD) solutions. Rhodamine 6G (R6G) was chosen as the probe molecule to study the SERS performance of the substrates. The Raman signal of 10−10 M R6G was detected clearly by the substrate with the enhancement factor of 2.64 × 108. All relative standard deviation (RSD) values of the major peaks for R6G were within the scope of 10.4% to 16.7%. The substrate could work efficiently even after immersed in water for one month.

Growth of Nanostructure Silver Films by DC Magnetron Sputtering for Surface Enhanced Raman Scattering Substrate

2016 ◽  
Vol 675-676 ◽  
pp. 285-288 ◽  
Author(s):  
Suparat Tuscharoen ◽  
Mati Horprathum ◽  
Pitak Eiamchai ◽  
Noppadon Nuntawong ◽  
Chanunthorn Chananonnawathorn ◽  
...  
Keyword(s):  
Optical Properties ◽  
Magnetron Sputtering ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Sers Substrate ◽  
Dc Magnetron Sputtering ◽  
Silver Films ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Nanostructure silver films were obtained by dc magnetron sputtering at room temperature. The influences of deposition time on the morphology and optical properties were studied by field-emission scanning electron microscope and UV-vis NIR spectrophotometer. It was found that the optical properties of the nanostructure silver film can be effect by surface morphology. The surface enhanced Raman scattering activities of nanostructure Ag films were demonstrated by methylene blue (MB) as probing molecules while the detection limit of MB was found to be as low as 10-5 M from this SERS substrate.

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