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Gold Nanohole Arrays Fabricated by Interference Lithography Technique as SERS Probes for Chemical Species Such As Rhodamine 6G and 4,4′-Bipyridine
被引:19
作者:
Gomez Armas, Luis E.
[1
]
Menezes, Jacson W.
[1
]
Huila, M. G.
[2
]
Araki, K.
[2
]
Toma, H. E.
[2
]
机构:
[1] Univ Fed Pampa, UNIPAMPA, Grp Opt Micro & Nanofabricacao Disposit GOMNDI, Campus Alegrete, BR-97546550 Alegrete, RS, Brazil
[2] Univ Sao Paulo, Lab Nanotecnol, Inst Quim, BR-26077 Sao Paulo, SP, Brazil
来源:
关键词:
Interference lithography;
SERS;
Nanoholes;
Rhodamine;
6G;
4-4 ' Bipyridine;
Raman spectroscopy;
ENHANCED RAMAN-SCATTERING;
SURFACE;
TRANSMISSION;
SPECTROSCOPY;
MOLECULES;
D O I:
10.1007/s11468-016-0353-8
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In the present study, we report the SERS effect of rhodamine 6G (Rh6G) and 4-4' bipyridine (Bipy) molecules on the surface of gold nanohole (AuNh) arrays fabricated by the interference lithography (IL) technique. It was observed an enhancement of the main bands of Rh6G and 4-4' Bipy molecules, when deposited over the surface of AuNh, in comparison when that was deposited on the surface of 5-nm flat gold film. Our study indicates that metallic nanostructures fabricated by IL technique have the potential for high impact on biochemical sensing, such as DNA and bacterial detection, real time glucose sensing for diabetes, and in situ identification of reaction products.
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页码:1015 / 1020
页数:6
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