Surface-enhanced Raman Scattering (SERS) Effect of Hexagonally Arranged Gold Nanoparticle Array with 29-nm Particles and 23-nm Gaps Using Liquid-crystalline Block-copolymer Template

被引：10

作者：

Hadano, Shingo ^{[1
,3
]}

Handa, Hiroshige ^{[1
]}

Nagai, Keiji ^{[1
]}

Iyoda, Tomokazu ^{[1
]}

Li, JingZe ^{[2
]}

Watanabe, Shigeru ^{[3
]}

机构：

[1] Tokyo Inst Technol, Chem Resources Lab, Div Integrated Mol Engn, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Univ Elect Sci & Technol China, Sch Microelect & Solid State Elect, Chengdu 610054, Peoples R China

[3] Kochi Univ, Fac Sci, Dept Appl Sci, Kochi 7808520, Japan

来源：

CHEMISTRY LETTERS | 2013年 / 42卷 / 01期

关键词：

FILMS; NANOSTRUCTURES; PYRIDINE; SPECTRA;

D O I：

10.1246/cl.2013.71

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A hexagonally arranged gold nanoparticle array with a particle size of 29 nm and gap of 23 nm was fabricated on a silicon wafer substrate through the block-copolymer templating method. Its molecular sensing ability was examined on the basis of surface-enhanced Raman scattering (SERS). With 4-sulfanylpyridine (4-Spy) used as a target molecule, the SERS enhancement factor (EF) for this array was 7.0 x 104. A linear relationship between the SERS signal and the amount of 4-Spy was obtained, with a dynamic range of four orders of magnitude. The highly reproducible SERS sensing originates from the well-ordered gold nanoparticle arrangement over the whole substrate.

引用

页码：71 / 73

页数：3

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