A facile self-deposition of Ag nanosheets on silicon substrates for high-performance SERS sensing

被引：5
作者：
Chang, Yu-Cheng [1 ]
Chen, Chien-Ming [1 ]
Chou, Chia-Man [2 ,3 ]
机构：
[1] Feng Chia Univ, Dept Mat Sci & Engn, Taichung 40724, Taiwan
[2] Taichung Vet Gen Hosp, Dept Surg, Taichung 40705, Taiwan
[3] Natl Yang Ming Univ, Coll Med, Taipei 11221, Taiwan
来源：
OPTICAL MATERIALS | 2021年 / 111卷
关键词：
Electroless deposition; Ag nanosheets; Localized surface plasmon resonance; Surface-enhanced Raman scattering; SILVER NANOSTRUCTURES; ELECTROLESS DEPOSITION; NANOPARTICLES; FABRICATION; DENDRITES; ADENOSINE; FILM; ION;
D O I：
10.1016/j.optmat.2020.110609
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper reports on a facile low-cost electroless deposition method with a short reaction time to directly fabricate Ag nanosheets onto a silicon substrate. Silver nitrate, hydrofluoric acid, and trisodium citrate were used as a silver source, etchant, and capping reagent by a wet chemical approach. The surface morphology of the Ag nanostructures could be controlled by adjusting the difference of reaction conditions (such as concentrations of hydrofluoric acid and trisodium citrate, reaction time). Ag nanosheets provide high corners, anisotropy, and hot spots for enhancing localized surface plasmon resonance with higher surface-enhanced Raman scattering enhancement and lower detection limits, which shall be beneficial in SERS-based chemical sensing.
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页数：6
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