Surface Nanostructures Forming during the Early Stages of the Metal-Assisted Chemical Etching of Silicon. Optical Properties of Silver Nanoparticles

2018 ◽  
Vol 52 (3) ◽  
pp. 316-319 ◽  
Author(s):  
Yu. A. Zharova ◽  
V. A. Tolmachev ◽  
A. I. Bednaya ◽  
S. I. Pavlov
Keyword(s):  
Silver Nanoparticles ◽  
Optical Properties ◽  
Chemical Etching ◽  
Early Stages ◽  
Surface Nanostructures ◽  
Metal Assisted Chemical Etching

scholarly journals Reusable Surface-Enhanced Raman Spectroscopy Substrates Made of Silicon Nanowire Array Coated with Silver Nanoparticles Fabricated by Metal-Assisted Chemical Etching and Photonic Reduction

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1531 ◽  
Author(s):  
Shi Bai ◽  
Yongjun Du ◽  
Chunyan Wang ◽  
Jian Wu ◽  
Koji Sugioka
Keyword(s):  
Silver Nanoparticles ◽  
Chemical Etching ◽  
Silicon Nanowire ◽  
Nanowire Array ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Silicon Nanowire Array ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Metal Assisted Chemical Etching

Surface-enhanced Raman spectroscopy (SERS) has advanced over the last four decades and has become an attractive tool for highly sensitive analysis in fields such as medicine and environmental monitoring. Recently, there has been an urgent demand for reusable and long-lived SERS substrates as a means of reducing the costs associated with this technique To this end, we fabricated a SERS substrate comprising a silicon nanowire array coated with silver nanoparticles, using metal-assisted chemical etching followed by photonic reduction. The morphology and growth mechanism of the SERS substrate were carefully examined and the performance of the fabricated SERS substrate was tested using rhodamine 6G and dopamine hydrochloride. The data show that this new substrate provides an enhancement factor of nearly 1 × 108. This work demonstrates that a silicon nanowire array coated with silver nanoparticles is sensitive and sufficiently robust to allow repeated reuse. These results suggest that this newly developed technique could allow SERS to be used in many commercial applications.

scholarly journals Mesopore Formation and Silicon Surface Nanostructuration by Metal-Assisted Chemical Etching With Silver Nanoparticles

2020 ◽  
Vol 8 ◽  
Author(s):  
Elisa Pinna ◽  
Sylvain Le Gall ◽  
Encarnacion Torralba ◽  
Guido Mula ◽  
Christine Cachet-Vivier ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Chemical Etching ◽  
Silicon Surface ◽  
Metal Assisted Chemical Etching

Growth, Structure and Optical Properties of Silicon Nanowires Formed by Metal-Assisted Chemical Etching

2012 ◽  
Vol 7 (6) ◽  
pp. 602-606 ◽  
Author(s):  
K. A. Gonchar ◽  
L. A. Osminkina ◽  
R. A. Galkin ◽  
M. B. Gongalsky ◽  
V. S. Marshov ◽  
...  
Keyword(s):  
Optical Properties ◽  
Silicon Nanowires ◽  
Chemical Etching ◽  
Growth Structure ◽  
Metal Assisted Chemical Etching

N-type silicon nanowires prepared by silver metal-assisted chemical etching: Fabrication and optical properties

2019 ◽  
Vol 90 ◽  
pp. 198-204 ◽  
Author(s):  
Le Thanh Cong ◽  
Nguyen Thi Ngoc Lam ◽  
Nguyen Truong Giang ◽  
Pham The Kien ◽  
Nguyen Duc Dung ◽  
...  
Keyword(s):  
Optical Properties ◽  
Silicon Nanowires ◽  
Chemical Etching ◽  
Type Silicon ◽  
Metal Assisted Chemical Etching ◽  
Silver Metal
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