Ordering Ag nanowire arrays by a glass capillary: a portable, reusable and durable SERS substrate.
Ordering Ag nanowire arrays by a glass capillary: a portable, reusable and durable SERS substrate.
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通过玻璃毛细管排序银纳米线阵列:便携式、可重复使用且耐用的 SERS 基底
DOI:
10.1038/srep00987
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发表时间:
2012
影响因子:
4.6
通讯作者:
Yu, Shu-Hong
中科院分区:
文献类型:
--
作者:
Liu, Jian-Wei;Wang, Jin-Long;Huang, Wei-Ran;Yu, Le;Ren, Xi-Feng;Wen, Wu-Cheng;Yu, Shu-Hong
Assembly of nanowires into ordered macroscopic structures with new functionalities has been a recent focus. In this Letter, we report a new route for ordering hydrophilic Ag nanowires with high aspect ratio by flowing through a glass capillary. The present glass capillary with well-defined silver nanowire films inside can serve as a portable and reusable substrate for surface-enhanced Raman spectroscopy (SERS), which may provide a versatile and promising platform for detecting mixture pollutions. By controlling the flow parameters of nanowire suspensions, initially random Ag nanowires can be aligned to form nanowire arrays with tunable density, forming cambered nanowire films adhered onto the inner wall of the capillary. Compared with the planar ordered Ag nanowire films by the Langmuir-Blodgett (LB) technique, the cambered nanowire films show better SERS performance.
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