Self-Aligned Colloidal Lithography for Controllable and Tuneable Plasmonic Nanogaps

被引：35

作者：

Ding, Tao ^{[1
,2
]}

Herrmann, Lars O. ^{[1
]}

de Nijs, Bart ^{[1
]}

Benz, Felix ^{[1
]}

Baumberg, Jeremy J. ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, NanoPhoton Ctr, Cambridge CB3 0HE, England

[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 1TN, England

来源：

SMALL | 2015年 / 11卷 / 18期

基金：

英国工程与自然科学研究理事会;

关键词：

ENHANCED RAMAN-SCATTERING; NANOPARTICLE DIMERS; FABRICATION; SERS; NANOSTRUCTURES; MOLECULES; SUBSTRATE; RESONANCE; UNIFORM; ARRAYS;

D O I：

10.1002/smll.201402639

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Au nanoparticles (NPs) deposited on a substrate function as ring shaped colloidal shadow masks. Using e-beam evaporation of gold, nanometer sized gaps are formed as a result. The size of these gaps can be accurately tuned by controlling the thickness of the gold deposition, thereby tuning the plasmonic coupling of the NPs with the substrate. The clean cavity produced between the Au NPs and the Au film provides an excellent SERS platform for trace molecule detection. © 2014 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：2139 / 2143

页数：5

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