Molecular Sensing and Color Manipulation Based on Dimension-Controlled Plasmon-Enhanced Silicon Nanotube SERS Substrates

2018 ◽  
Vol 122 (15) ◽  
pp. 8510-8516 ◽  
Author(s):  
Yi-Chen Lai ◽  
Li-Wei Nien ◽  
Hsin-Chia Ho ◽  
Jia-Han Li ◽  
Chun-Hway Hsueh
Keyword(s):  
Molecular Sensing ◽  
Sers Substrates ◽  
Silicon Nanotube

Zinc oxide/silver nanoarrays as reusable SERS substrates with controllable ‘hot-spots’ for highly reproducible molecular sensing

2014 ◽  
Vol 436 ◽  
pp. 251-257 ◽  
Author(s):  
Ahmad Esmaielzadeh Kandjani ◽  
Mahsa Mohammadtaheri ◽  
Akshi Thakkar ◽  
Suresh Kumar Bhargava ◽  
Vipul Bansal
Keyword(s):  
Zinc Oxide ◽  
Hot Spots ◽  
Molecular Sensing ◽  
Sers Substrates

High performance and reusable SERS substrates using Ag/ZnO heterostructure on periodic silicon nanotube substrate

2018 ◽  
Vol 439 ◽  
pp. 852-858 ◽  
Author(s):  
Yi-Chen Lai ◽  
Hsin-Chia Ho ◽  
Bo-Wei Shih ◽  
Feng-Yu Tsai ◽  
Chun-Hway Hsueh
Keyword(s):  
High Performance ◽  
Sers Substrates ◽  
Silicon Nanotube

scholarly journals Sandwich-like layer-by-layer assembly of gold nanoparticles with tunable SERS properties

2016 ◽  
Vol 7 ◽  
pp. 1028-1032 ◽  
Author(s):  
Zhicheng Liu ◽  
Lu Bai ◽  
Guizhe Zhao ◽  
Yaqing Liu
Keyword(s):  
Gold Nanoparticles ◽  
Low Cost ◽  
Layer By Layer ◽  
Molecular Sensing ◽  
Multilayered Thin Film ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Layer Assembly

Sandwich-like layer-by-layer thin films consisting of polyelectrolytes and gold nanoparticles were utilized to construct surface-enhanced Raman scattering (SERS) substrates with tunable SERS properties. It is found that both the size of the nanoparticles in the layers and the interlayer distance significantly influence the SERS performance of the multilayered thin film. These simple, low-cost, easily processable and controllable SERS substrates have a promising future in the field of molecular sensing.

scholarly journals Germanium Nanowires as Sensing Devices: Modelization of Electrical Properties

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 507
Author(s):  
Luca Seravalli ◽  
Claudio Ferrari ◽  
Matteo Bosi
Keyword(s):  
Charge Transfer ◽  
Electrical Properties ◽  
Surface Charges ◽  
Molecular Sensing ◽  
Germanium Nanowires ◽  
Physical Mechanisms ◽  
Additional Doping ◽  
Different Types ◽  
N Doping ◽  
Very High

In this paper, we model the electrical properties of germanium nanowires with a particular focus on physical mechanisms of electrical molecular sensing. We use the Tibercad software to solve the drift-diffusion equations in 3D and we validate the model against experimental data, considering a p-doped nanowire with surface traps. We simulate three different types of interactions: (1) Passivation of surface traps; (2) Additional surface charges; (3) Charge transfer from molecules to nanowires. By analyzing simulated I–V characteristics, we observe that: (i) the largest change in current occurs with negative charges on the surfaces; (ii) charge transfer provides relevant current changes only for very high values of additional doping; (iii) for certain values of additional n-doping ambipolar currents could be obtained. The results of these simulations highlight the complexity of the molecular sensing mechanism in nanowires, that depends not only on the NW parameters but also on the properties of the molecules. We expect that these findings will be valuable to extend the knowledge of molecular sensing by germanium nanowires, a fundamental step to develop novel sensors based on these nanostructures.

scholarly journals Monolayer molecular sensing using infrared leaky waveguide mode

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035305
Author(s):  
Tieyan Zhang ◽  
De He ◽  
Lu Liu ◽  
Qiqige Wulan ◽  
Jiachen Yu ◽  
...  
Keyword(s):  
Waveguide Mode ◽  
Molecular Sensing ◽  
Leaky Waveguide

scholarly journals Explosive vapour/particles detection using SERS substrates and a hand-held Raman detector

RSC Advances ◽  
2021 ◽  
Vol 11 (42) ◽  
pp. 26029-26036
Author(s):  
Vered Heleg-Shabtai ◽  
Amalia Zaltsman ◽  
Mali Sharon ◽  
Hagai Sharabi ◽  
Ido Nir ◽  
...  
Keyword(s):  
Trace Analysis ◽  
Raman Spectrometry ◽  
Raman Spectrometer ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

We developed and optimized surface-enhanced Raman spectrometry (SERS) methods for trace analysis of explosive vapour and particles using a hand-held Raman spectrometer in the field.

Plasmonics tunable Ag-coated gold nanorods arrays as reusable SERS substrates for multiplexed antibiotics detection

2021 ◽  
Author(s):  
Xiaoya Peng ◽  
Dan Li ◽  
Yuanting Li ◽  
Haibo Xing ◽  
Wei Deng
Keyword(s):  
Gold Nanorods ◽  
Self Assembly ◽  
Aqueous Media ◽  
Antibiotic Residues ◽  
Sers Substrates ◽  
Antibiotics Detection ◽  
Robust Strategies

Antibiotic contaminants in aqueous media pose serious threat to human and ecological environments. Therefore, it is necessary to develop robust strategies to detect antibiotic residues. For this purpose, a self-assembly...

Sign in / Sign up

Export Citation Format

Share Document