A novel surface-enhanced Raman scattering substrate: Diamond nanopit infilled with gold nanoparticle

被引：16

作者：

Song, Jie ^{[1
]}

Cheng, Shaoheng ^{[1
]}

Li, Hongdong ^{[1
]}

Guo, Hongyun ^{[2
]}

Xu, Shuping ^{[2
]}

Xu, Weiqing ^{[2
]}

机构：

[1] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

[2] Jilin Univ, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China

来源：

MATERIALS LETTERS | 2014年 / 135卷

基金：

中国国家自然科学基金;

关键词：

Carbon materials; Nanocomposites; Plasmon; Au-nanoparticle/diamond-nanopit; Oxygen plasma etching; SERS substrate; SILVER NANOSPHERES; CLUSTER ARRAYS; SERS; SPECTROSCOPY;

D O I：

10.1016/j.matlet.2014.07.139

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, a hybrid structure of inversely truncated pyramid-shaped diamond nanopits infilled with gold nanoparticle (Au NP) has been fabricated from a Au film coated single crystal diamond by oxygen plasma etching. Surface enhanced Raman scattering (SERS) performances based on the Au-NP/diamond-pit, using 4-Mercaptopyridine as the probe molecule, show that the hybrid structure could realize a larger SERS enhancement factor compared to the conventional isolated Au NPs. This is attributed to the increased concentration of incident light field on the Au NPs due to the special geometric feature, and the coupling of localized surface plasmon resonance from Au NPs. Taking into account the unique properties of diamond, the diamond-related hybrid structure could be used as a kind of high performance SERS substrate. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：214 / 217

页数：4

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