Silver nanostructures evolution in porous SiO2/p-Si matrices for wide wavelength surface-enhanced Raman scattering applications

被引：30
|
作者：
Yakimchuk, Dmitry [1 ]
Kaniukov, Egor [1 ]
Bundyukova, Victoria [1 ]
Osminkina, Liubov [2 ]
Teichert, Steffen [3 ]
Demyanov, Sergey [1 ]
Sivakov, Vladimir [4 ]
机构：
[1] NAS Belarus, Sci Pract Mat Res Ctr, Div Cryogen Res, Minsk 220072, BELARUS
[2] Lomonosov Moscow State Univ, Dept Phys, Leninskie Gory 1, Moscow 119991, Russia
[3] Ernst Abbe Univ Appl Sci, Carl Zeiss Promenade 2, D-07745 Jena, Germany
[4] Leibniz Inst Photon Technol, Funct Interfaces Dept, Albert Einstein St 9, D-07745 Jena, Germany
来源：
MRS COMMUNICATIONS | 2018年 / 8卷 / 01期
基金：
美国国家科学基金会; 俄罗斯科学基金会;
关键词：
SILICON; MOLECULES; NANOPARTICLES; GOLD;
D O I：
10.1557/mrc.2018.22
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The formation of silver nanostructures (AgNSs) with different crystals morphology in porous SiO2/p-Si templates by the electroless wet-chemical method at temperatures between 20 and 50 degrees C and surface-enhanced Raman scattering (SERS) was investigated. It was found that optimized dendritic silver architectures contain a significant number of localized hot spots. We show that well-reproducible AgNSs provide a significantly enhanced Raman signal of Nile blue dye molecules up to 10(-6) M by using different excitation wavelengths (473, 532, and 633 nm). Based on our observations, the well-organized AgNSs can act as efficient surfaces for SERS as well as (bio)-sensor applications.
引用
收藏
页码：95 / 99
页数：5
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