Silver Nanoparticles Deposited on Porous Silicon as a Surface-Enhanced Raman Scattering (SERS) Active Substrate

2012 ◽  
Vol 66 (3) ◽  
pp. 294-299 ◽  
Author(s):  
Leila Zeiri ◽  
Katya Rechav ◽  
Ze'ev Porat ◽  
Yehuda Zeiri
Keyword(s):  
Silver Nanoparticles ◽  
Porous Silicon ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Active Substrate ◽  
Enhanced Raman Scattering ◽  
Sers Active Substrate

scholarly journals Quasi-three-dimension Structured Surface-enhanced Raman Scattering Substrates Based on Silver Nanoparticles/ Porous Silicon Hybrid

2021 ◽  
Author(s):  
Thuy Van Nguyen ◽  
Duc Chinh Vu ◽  
Huy Bui ◽  
Thanh Binh Pham ◽  
Thi Hong Cam Hoang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Porous Silicon ◽  
Raman Scattering ◽  
Electrochemical Sensors ◽  
Surface Enhanced Raman Scattering ◽  
Sers Substrate ◽  
Three Dimension ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Abstract Surface-enhanced Raman scattering (SERS) is a powerful spectroscopic technique for ultrasensitive and selective bio-chemical detection due to its capability of providing “fingerprint” information of molecular structures in low concentrations even at single molecular level. In this work, we present the silver nanoparticles/porous silicon (AgNPs/PSi) hybrid structures as SERS substrates prepared by a fast, straightforward and effective method using the PSi immersion plating in silver nitrate (AgNO3) solution. The nano-silvers can simultaneously grow on the surface and nano-pillars of porous silicon making quasi-three-dimension (quasi-3D) structural SERS substrate that has a large surface area to adsorb moleculars for SERS measurement. The proposed SERS substrate can detect Diphenylamine (DPA) with ultralow concentration of 10-9 M (~0.17 ppb), which would have higher enhancement than 2D surface SERS based on nano-silver deposited on silicon substrate and other electrochemical sensors.

Silver particles deposited on porous silicon as surface-enhanced Raman scattering active substrate

2014 ◽  
Vol 12 (s1) ◽  
pp. S12401-312404 ◽  
Author(s):  
Changwu Lü Changwu Lü ◽  
Jiajia Wang Jiajia Wang ◽  
Xiaoyi Lü Xiaoyi Lü ◽  
Zhenghong Jia Zhenghong Jia
Keyword(s):  
Porous Silicon ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Silver Particles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Active Substrate ◽  
Enhanced Raman Scattering

Study of Diluted Meldonium Solutions by Surface Enhanced Raman Scattering Spectroscopy

2019 ◽  
Vol 18 (03n04) ◽  
pp. 1940054
Author(s):  
N. Khinevich ◽  
S. Zavatski ◽  
H. Bandarenka ◽  
V. Belyatsky ◽  
E. Galyuk ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Chemical Mechanism ◽  
Raman Intensity ◽  
Raman Scattering Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Active Substrate ◽  
Enhanced Raman Scattering

Silvered porous silicon was utilized as an active substrate for a detection of small amounts of meldonium by surface enhanced Raman scattering (SERS) spectroscopy. We were able to detect the meldonium in its water solutions at the concentrations of 10[Formula: see text]–10[Formula: see text][Formula: see text]M. Immersion of the silvered porous silicon in the meldonium solutions at the 10[Formula: see text][Formula: see text]M concentration and lower led to the dimers’ formation. At the concentrations larger than 10[Formula: see text][Formula: see text]M, a greater contribution to the enhancement of the Raman intensity was caused by a chemical mechanism while the smaller amounts were detected mostly due to an electromagnetic mechanism.

Anisotropic gold nanoassembly: a study on polarization-dependent and polarization-selective surface-enhanced Raman scattering

2015 ◽  
Vol 17 (6) ◽  
pp. 4268-4276 ◽  
Author(s):  
Mohammad Kamal Hossain ◽  
Genin Gary Huang ◽  
Yoshita Tanaka ◽  
Tadaaki Kaneko ◽  
Yukihiro Ozaki
Keyword(s):  
Gold Nanoparticles ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Active Substrate ◽  
Enhanced Raman Scattering ◽  
Sers Active Substrate

Anisotropic nanoassembly of gold nanoparticles as SERS-active substrate self-depicting a tiny gaps at interstitials responsible for giant SERS enhancement.

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