Large-area surface-enhanced Raman scattering-active substrates fabricated by femtosecond laser ablation

被引：0
|
作者：
ZhiQing Zhu
ZhenDong Yan
Peng Zhan
ZhenLin Wang
机构：
[1] Nanjing University,School of Physics and National Laboratory of Solid State Microstructures
来源：
Science China Physics, Mechanics and Astronomy | 2013年 / 56卷
关键词：
surface-enhanced Raman scattering; femtosecond laser ablation; metal microstructure;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A rapid and simple approach to fabricate large-area surface-enhanced Raman scattering-active (SERS-active) substrates is reported. The substrates are fabricated by using femtosecond laser (fs-laser) direct writing on Silicon wafers, followed by thin-film coating of metal such as gold. The substrates are demonstrated to exhibit signal homogeneity and good enhancement ability for SERS. The maximum enhancement factor (EF) up to 3×107 of such SERS substrates for rhodamine 6G (R6G) at 785 nm excitation wavelength was measured. This technique could demonstrate a functional microchip with SERS capability of signal homogeneity, high sensitivity and chemical stability.
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页码：1806 / 1809
页数：3
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