Glass Nanopillar Arrays with Nanogap-Rich Silver Nanoislands for Highly Intense Surface Enhanced Raman Scattering

被引：207

作者：

Oh, Young-Jae ^{[1
]}

Jeong, Ki-Hun ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Bio & Brain Engn, KAIST Inst Opt Sci & Technol, Taejon 305701, South Korea

来源：

ADVANCED MATERIALS | 2012年 / 24卷 / 17期

基金：

新加坡国家研究基金会;

关键词：

SERS; plasmonics; nanofabrication; nanogap; nanopillars; SERS; SPECTROSCOPY; NANOSTRUCTURES; FABRICATION; SUBSTRATE; FILMS; GOLD;

D O I：

10.1002/adma.201104696

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The enhancement of surface enhanced Raman scattering (SERS) with nanogap-rich silver nanoislands surrounding glass nanopillars at wafer level is reported. High-density hot spots are generated by increasing the number of nanogap-rich nanoislands within a detection volume. The SERS substrate shows a high enhancement factor of over 10 7 with excellent signal uniformity (7.8%) and it enables the label-free detection of aqueous DNA base molecules at nanomolar level. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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收藏

页码：2234 / 2237

页数：4

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