Surface-enhanced Raman scattering (SERS)-active substrates from silver plated-porous silicon for detection of crystal violet

2015 ◽  
Vol 331 ◽  
pp. 241-247 ◽  
Author(s):  
Farid A. Harraz ◽  
Adel A. Ismail ◽  
Houcine Bouzid ◽  
S.A. Al-Sayari ◽  
A. Al-Hajry ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Raman Scattering ◽  
Crystal Violet ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

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.

Surface Enhanced Raman Spectroscopy Detection of Crystal Violet Based on an Excellent Silver Nanoparticles/Silicon Pyramid Arrays Structure

2020 ◽  
Vol 15 (11) ◽  
pp. 1321-1326
Author(s):  
Aning Ma ◽  
Wenjing Wei ◽  
Zhongqiang Zhang ◽  
Sichang Peng ◽  
Yurong Wang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Crystal Violet ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced Raman Spectroscopy ◽  
Label Free ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

An efficient surface-enhanced Raman scattering substrate based on silver nanoparticles/silicon pyramid arrays structure is theoretically investigated and experimentally demonstrated. The electric field distributions using finite-element-method are calculated. The surface-enhanced Raman scattering behaviors of sensitivity, uniformity and stability are emphatically discussed and compared by the detection of crystal violet. These theoretical and experimental results reveal that the silver nanoparticles/silicon pyramid arrays substrate is expected to be an effective surface-enhanced Raman scattering platform for label-free sensitive surfaceenhanced Raman spectroscopy detection in areas of biotechnology, medicine and food safety.

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

A Surface Enhanced Raman Scattering (SERS) microdroplet detector for trace levels of crystal violet

2013 ◽  
Vol 180 (11-12) ◽  
pp. 997-1004 ◽  
Author(s):  
Bingxiang Liu ◽  
Wei Jiang ◽  
Haiting Wang ◽  
Xiaohui Yang ◽  
Sanjun Zhang ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Crystal Violet ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering
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