Nano-Engineered Optimal Templates for Surface-Plasmon Enhanced Raman Scattering

被引：2

作者：

Kim, Ho-Jong ^{[1
,2
]}

Kim, Tae-Soo ^{[2
]}

Ahn, Byung-Jun ^{[2
]}

Dong, Yanqun ^{[2
]}

Sohn, Hee Jin ^{[1
]}

Kim, Han-Jung ^{[1
]}

Kim, Sanghun ^{[1
]}

Ha, Dong Han ^{[1
]}

Hong, In-Seok ^{[3
]}

Lee, Jeong-Soo ^{[4
]}

Song, Jung Hoon ^{[2
]}

机构：

[1] Korea Res Inst Stand & Sci, Taejon 305340, South Korea

[2] Kongju Natl Univ, Dept Phys, Kong Ju 314701, Chungnam, South Korea

[3] Kongju Natl Univ, Dept Chem, Kong Ju 314701, Chungnam, South Korea

[4] Korea Res Inst Biosci & Biotechnol, Taejon 305806, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2012年 / 12卷 / 02期

关键词：

Surface Enhanced Raman; E-Beam Lithography; Surface Plasmon; Oligonucleotide; Chemical Modification; INITIO MO CALCULATION; THYMINE MOLECULE; NANOPARTICLES; DNA; SPECTROSCOPY; DEPENDENCE; SILVER;

D O I：

10.1166/jnn.2012.5699

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We investigated the critical conditions to realize reliable and nano-engineered templates for surface-plasmon enhanced Raman scattering (SEAS). Ultra-sensitive SERSs of thymine oligonucleotides were successfully realized on the template of Au nanoparticle arrays which were prepared by the combination of electron-beam lithography and post-chemical modification techniques. Drastic enhancement of Raman signal from the thymine oligonucleotides was only observed on the optimized templates, where the tuning of the plasmon resonance condition and the formation of the hot spots were both critical. Our results suggest that the artificial generation of reproducible and controlled hot spots can be achieved by our approach.

引用

页码：966 / 970

页数：5

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