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

Binary “island” shaped arrays with high-density hot spots for surface-enhanced Raman scattering substrates

Nanoscale ◽  
2018 ◽  
Vol 10 (29) ◽  
pp. 14220-14229 ◽  
Author(s):  
Weidong Zhao ◽  
Shuyuan Xiao ◽  
Yuxian Zhang ◽  
Dong Pan ◽  
Jiahui Wen ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Hot Spots ◽  
Surface Enhanced Raman Scattering ◽  
High Density ◽  
Self Assembled Monolayer ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Self Assembled

The BISA with high-density hot spots as reproducible SERS substrates by combining an opal structure with self-assembled monolayer AuNPs is demonstrated.

scholarly journals Facile Fabrication of Micro/Nano Hierarchical SERS Sensor via Anisotropic Etching and Electrochemical Treatment for Malachite Green Detection

2019 ◽  
Vol 9 (23) ◽  
pp. 5237
Author(s):  
Chu-Yu Huang ◽  
Chih-Hung Chien
Keyword(s):  
Malachite Green ◽  
Fem Simulation ◽  
High Sensitivity ◽  
Practical Method ◽  
Electrochemical Treatment ◽  
Sers Substrate ◽  
Sers Substrates ◽  
Surface Enhanced Raman ◽  
Nanostructured Gold ◽  
Facile Fabrication

We propose a facile method to produce micro/nano hierarchical surface-enhanced Raman scattering (SERS) active substrates using simple steps and inexpensive costs. The proposed SERS substrate is a silicon pyramid array covered by a nanostructured gold film (AuNS @ SiPA). Through finite element method (FEM) simulation, we showed that many strong local electric field enhancements (hot spots) were formed between the nano-gap of gold nanostructures. In addition, the micron-scale pyramid structure not only increases the sensing surface area of the sensor, but also helps trap light. By combining these micro and nano structures, the proposed micro/nano hierarchical SERS sensor exhibited high sensitivity. Experimental results confirmed that the AuNS @ SiPA substrate has high sensitivity. The SERS signal enhancement factor obtained from the Rhodamine 6G (R6G) probe molecules was as high as 1 × 107 and the SERS substrates were found to be able to detect a very low concentration of 0.01 nM malachite green (MG) solution. Therefore, this study provides a novel and practical method for fabricating SERS substrates that can facilitate the use of SERS in medicine, food safety, and biotechnology.

Facile fabrication of thin metal oxide films on porous carbon for high density charge storage

2020 ◽  
Vol 562 ◽  
pp. 567-577 ◽  
Author(s):  
Bincy Lathakumary Vijayan ◽  
Izan Izwan Misnon ◽  
Gopinathan M. Anil Kumar ◽  
Keita Miyajima ◽  
Mogalahalli Venkatesh Reddy ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Porous Carbon ◽  
Oxide Films ◽  
High Density ◽  
Thin Metal ◽  
Charge Storage ◽  
Metal Oxide Films ◽  
Facile Fabrication

An in situ approach for facile fabrication of robust and scalable SERS substrates

Nanoscale ◽  
2014 ◽  
Vol 6 (13) ◽  
pp. 7232-7236 ◽  
Author(s):  
Yi-Chung Wang ◽  
Joseph S. DuChene ◽  
Fengwei Huo ◽  
Wei David Wei
Keyword(s):  
High Sensitivity ◽  
Sers Substrate ◽  
Biological Detection ◽  
Sers Substrates ◽  
Widespread Implementation ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Facile Fabrication ◽  
Enhanced Raman Scattering

The widespread implementation of surface enhanced Raman scattering (SERS) techniques for chemical and biological detection requires an inexpensive, yet robust SERS substrate with high sensitivity and reproducibility.

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

Facile fabrication and growth mechanism of 3D flower-like Fe3O4 nanostructures and their application as SERS substrates

CrystEngComm ◽  
2012 ◽  
Vol 14 (14) ◽  
pp. 4834 ◽  
Author(s):  
Qian Gao ◽  
Aiwu Zhao ◽  
Zibao Gan ◽  
Wenyu Tao ◽  
Da Li ◽  
...  
Keyword(s):  
Growth Mechanism ◽  
Sers Substrates ◽  
Facile Fabrication

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
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