scholarly journals Use of Polycrystalline Ice for Assembly of Large Area Au Nanoparticle Superstructures as SERS Substrates

2016 ◽  
Vol 9 (1) ◽  
pp. 513-520 ◽  
Author(s):  
Deribachew Bekana ◽  
Rui Liu ◽  
Meseret Amde ◽  
Jing-Fu Liu
Keyword(s):  
Au Nanoparticle ◽  
Large Area ◽  
Sers Substrates ◽  
Polycrystalline Ice

scholarly journals Controlled-layer and large-area MoS_2 films encapsulated Au nanoparticle hybrids for SERS

2016 ◽  
Vol 24 (23) ◽  
pp. 26097 ◽  
Author(s):  
Zhen Li ◽  
Shouzhen Jiang ◽  
Yanyan Huo ◽  
Mei Liu ◽  
Cheng Yang ◽  
...  
Keyword(s):  
Au Nanoparticle ◽  
Large Area

Facile Fabrication of High-Density Sub-1-nm Gaps from Au Nanoparticle Monolayers as Reproducible SERS Substrates

2016 ◽  
Vol 26 (44) ◽  
pp. 8137-8145 ◽  
Author(s):  
Shaorong Si ◽  
Wenkai Liang ◽  
Yinghui Sun ◽  
Jing Huang ◽  
Weiliang Ma ◽  
...  
Keyword(s):  
High Density ◽  
Au Nanoparticle ◽  
Sers Substrates ◽  
Facile Fabrication

scholarly journals Facile method for detecting C 23 H 25 ClN 2 in fish using Au nanoparticle films as SERS substrates on glass

2018 ◽  
Vol 13 (6) ◽  
pp. 868-871
Author(s):  
Yan‐meng Li ◽  
Li‐wei Wang ◽  
Ruo‐ping Li ◽  
Jun‐he Han ◽  
Ming‐ju Huang
Keyword(s):  
Au Nanoparticle ◽  
Sers Substrates ◽  
Nanoparticle Films ◽  
C 23

scholarly journals Highly Sensitive Pesticide Detection using Electrochemically Prepared Silver-Gum Arabic Nanocluster-based SERS Substrates

2021 ◽  
Author(s):  
Yuqing Yang ◽  
Alan O'Riordan ◽  
Pierre Lovera
Keyword(s):  
Rapid Determination ◽  
Gum Arabic ◽  
Mixed Solution ◽  
Large Area ◽  
Sers Substrates ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Pre Treatment

Surface Enhanced Raman is a promising analytical method for harmful pesticides detection. Herein, we demonstrate a rapid method to directly monitor 2,4-D pesticide in water without the need of sample pre-treatment by using Silver-Gum Arabic (Ag-GA) electrochemically co-deposited SERS substrates. The facile electrochemical synthesis of the large-area (40 µm x 20 µm) SERS substrates needs only 10 seconds, with 2 μL AgNO3 and Gum Arabic mixed solution. Different mor-phologies including Ag-GA spherical nanoparticles and nano dendrites were synthesized by tuning the deposition parame-ters. This study therefore offers a novel way to fabricate SERS substrates for rapid determination of 2,4-D pesticides down to 1 pM in deionized water and 0.15 nM in commercial bottled and also river water samples

Large Area Au Decorated Multi-Walled CNTs Film for Surface Enhanced Raman Scattering

2013 ◽  
Vol 562-565 ◽  
pp. 826-831 ◽  
Author(s):  
Jie Zhang ◽  
Yu Lin Chen ◽  
Tuo Fan ◽  
Yong Zhu
Keyword(s):  
Raman Scattering ◽  
Resonance Effect ◽  
Surface Enhanced Raman Scattering ◽  
Fine Tuning ◽  
Sers Substrate ◽  
Large Area ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

We reported on a study upon a Surface-enhanced Raman Scattering (SERS) substrate produced from a large area multi-walled carbon nanotube (MWCNT) films decorated with Au nanoparticles. The morphology and spectrum of the MWCNTs/Au composite structure was characterized with scanning electron microscopy and spectrophotometer. The SERS signals of Rhodamine 6G (R6G) absorbed on the substrate were improved, which could contribute to the enlarged surface area for adsorption of molecules and Localized Plasmon Resonance Effect. The results indicated that it is potential to produce sensitive SERS substrates via further fine-tuning of size, shape of the nanostructure.

scholarly journals Al/Si Nanopillars as Very Sensitive SERS Substrates

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1534 ◽  
Author(s):  
Giovanni Magno ◽  
Benoit Bélier ◽  
Grégory Barbillon
Keyword(s):  
Native Oxide ◽  
Native Oxide Layer ◽  
Aluminum Layer ◽  
Large Area ◽  
Sers Substrates ◽  
Random Arrangement ◽  
Raman Enhancement ◽  
Sers Detection ◽  
Fdtd Simulations ◽  
Sers Sensing

In this paper, we present a fast fabrication of Al/Si nanopillars for an ultrasensitive SERS detection of chemical molecules. The fabrication process is only composed of two steps: use of a native oxide layer as a physical etch mask followed by evaporation of an aluminum layer. A random arrangement of well-defined Al/Si nanopillars is obtained on a large-area wafer of Si. A good uniformity of SERS signal is achieved on the whole wafer. Finally, we investigated experimentally the sensitivity of these Al/Si nanopillars for SERS sensing, and analytical enhancement factors in the range of 1.5 × 10 7 − 2.5 × 10 7 were found for the detection of thiophenol molecules. Additionally, 3D FDTD simulations were used to better understand optical properties of Al/Si nanopillars as well as the Raman enhancement.

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