共 36 条
Wrinkled Nanoporous Gold Films with Ultrahigh Surface-Enhanced Raman Scattering Enhancement
被引:260
作者:

Zhang, Ling
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h-index: 0
机构:
Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

Lang, Xingyou
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h-index: 0
机构:
Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

Hirata, Akihiko
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机构:
Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

Chen, Mingwei
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h-index: 0
机构:
Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
机构:
[1] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China
来源:
关键词:
wrinkle;
nanoporous gold (NPG);
surface-enhanced Raman scattering (SERS);
nanogaps;
MOLECULES;
SERS;
D O I:
10.1021/nn201443p
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Amplified by plasomonic nanostructured metals, Raman intensity of organic molecules and biomolecules can be dramatically improved, particularly at "hot spots" where intense electromagnetic fields are produced in the vicinity of narrow nanogaps between metallic nanostructures. Therefore, developing new substrates with a high density of "hot spots" has been the recent topic of Intense study. Here we report wrinkled nanoporous gold films that contain abundant Raman-active nanogaps produced by deformation and fracture of nanowire-like gold ligaments. This novel nanostructure yields ultrahigh surface enhanced Raman scattering for molecule detection.
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页码:4407 / 4413
页数:7
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