Ordered arrays of Ag nanodendrite clusters as effective surface-enhanced Raman scattering substrates

被引：9

作者：

Zuo, Jie ^{[1
]}

Meng, Guowen ^{[1
,2
]}

Zhu, Chuhong ^{[1
]}

Zhou, Qitao ^{[3
]}

Li, Zhongbo ^{[1
]}

Ke, Yan ^{[1
,2
]}

Zhou, Ningning ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys, Key Lab Mat Phys,CAS Ctr Excellence Nanosci, Hefei 230031, Peoples R China

[2] Univ Sci & Technol China, Hefei 230026, Peoples R China

[3] Ulsan Natl Inst Sci & Technol, Dept Mech Engn, 50 UNIST Gil, Ulsan 44919, South Korea

来源：

RSC ADVANCES | 2016年 / 6卷 / 32期

基金：

中国国家自然科学基金;

关键词：

EFFECTIVE SERS SUBSTRATE; DENDRITIC NANOSTRUCTURES; GALVANIC DISPLACEMENT; FRACTAL PATTERNS; NANOROD ARRAYS; ALUMINUM FOIL; NANOPARTICLES; SILVER; AU; SPECTROSCOPY;

D O I：

10.1039/c6ra03223k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a cheap synthetic approach to large-area ordered Ag nanodendrite cluster arrays as effective surface-enhanced Raman scattering (SERS) substrates, on a Zn plate coated with periodical porous photoresist via galvanic replacement reaction of Zn and AgNO3 in aqueous solution. Due to the geometrical confinement of the porous photoresist template coated on the Zn plate, the well-positioned Ag nanodendrite clusters are distributed on the Zn plate in ordered arrays. It is demonstrated that citric acid is essential to the formation of the nanodendrite cluster arrays. The resultant Ag nanodendrite cluster arrays not only have high SERS-activity to rhodamine 6G with good signal reproducibility but also can identify thiram (a widely-used pesticide) even at 0.1 mu M level, showing potential in SERS-based detection of pesticide remnants in the environment.

引用

页码：26490 / 26494

页数：5

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