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

页码：95 / 99

页数：5

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