Formation Regularities of Plasmonic Silver Nanostructures on Porous Silicon for Effective Surface-Enhanced Raman Scattering

被引：31

作者：

Bandarenka, Hanna V. ^{[1
]}

Girel, Kseniya V. ^{[1
]}

Bondarenko, Vitaly P. ^{[1
]}

Khodasevich, Inna A. ^{[2
]}

Panarin, Andrei Yu. ^{[2
]}

Terekhov, Sergei N. ^{[2
]}

机构：

[1] Belarusian State Univ Informat & Radioelect, Lab Mat & Struct Nanoelect, 6 Brovka St, Minsk 220013, BELARUS

[2] Natl Acad Sci Belarus, BI Stepanov Phys Inst, 68 Nezalezhnasti Av, Minsk 220072, BELARUS

来源：

NANOSCALE RESEARCH LETTERS | 2016年 / 11卷

关键词：

Porous silicon; Silver nanoparticles; Immersion deposition; Surface-enhanced Raman scattering; Detection limit; SERS; NANOPARTICLES; DEPOSITION; SPECTROSCOPY; DISPLACEMENT; FABRICATION; MOLECULES; ARRAYS; METALS; COPPER;

D O I：

10.1186/s11671-016-1473-y

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Plasmonic nanostructures demonstrating an activity in the surface-enhanced Raman scattering (SERS) spectroscopy have been fabricated by an immersion deposition of silver nanoparticles from silver salt solution on mesoporous silicon (meso-PS). The SERS signal intensity has been found to follow the periodical repacking of the silver nanoparticles, which grow according to the Volmer-Weber mechanism. The ratio of silver salt concentration and immersion time substantially manages the SERS intensity. It has been established that optimal conditions of nanostructured silver layers formation for a maximal Raman enhancement can be chosen taking into account a special parameter called effective time: a product of the silver salt concentration on the immersion deposition time. The detection limit for porphyrin molecules CuTMPyP4 adsorbed on the silvered PS has been evaluated as 10(-11) M.

引用

页数：11

共 45 条

[21] SURFACE ENHANCED RAMAN-SCATTERING (SERS) BY MOLECULES ADSORBED AT SPHERICAL-PARTICLES [J].