In situ Growth of Silver Nanoparticles in Porous Membranes for Surface-Enhanced Raman Scattering

被引：89

作者：

Chang, Sehoon ^{[1
]}

Combs, Zachary A. ^{[1
]}

Gupta, Maneesh K. ^{[1
]}

Davis, Richard ^{[1
]}

Tsukruk, Vladimir V. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 11期

基金：

美国国家科学基金会;

关键词：

silver nonoparticle; surfact-enhanced Raman scattering; nanoparticle assembly; porous alumina membrane; OPTICAL-PROPERTIES; SELECTION-RULES; SPECTROSCOPY; ARRAYS; NANOSTRUCTURES; PAIRS; SIZE;

D O I：

10.1021/am100758k

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We demonstrate the in situ growth of silver nanoparticles in porous alumina membranes (PAMs) for use as a surface-enhanced Raman scattering (SERS) detection substrate. This fabrication method is simple cost-effective, and fast, while providing control over the size of silver nanoparticles through the entire length of the cylindrical nanopores with uniform particle density inside the pores unachievable by the raditional infiltration technique. The in situ growth of silver nanoparticles was conducted from electroless-deposited nanoscale seeds on the interior of the PAM and resulted in the formation of numerous hot spots, which facilitated significantly higher SERS enhancement for these substrates compared with previously reported porous substrates.

引用

页码：3333 / 3339

页数：7

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