Co-assembled thin films of Ag nanowires and functional nanoparticles at the liquid-liquid interface by shaking

被引：34

作者：

Zhang, Shao-Yi ^{[1
]}

Liu, Jian-Wei ^{[1
]}

Zhang, Chuan-Ling ^{[1
]}

Yu, Shu-Hong ^{[1
]}

机构：

[1] Univ Sci & Technol China, CAS Key Lab Mech Behav & Design Mat, Hefei Natl Lab Phys Sci Microscale,Dept Chem, Div Nanomat & Chem,Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China

来源：

NANOSCALE | 2013年 / 5卷 / 10期

基金：

中国国家自然科学基金; 对外科技合作项目（国际科技项目）;

关键词：

ENHANCED RAMAN-SCATTERING; SILVER NANOWIRES; GOLD NANOWIRES; SELF-ASSEMBLE; NANOCRYSTALS; MONOLAYER; FABRICATION; STRATEGY; NANOFILM; DIMERS;

D O I：

10.1039/c3nr33856h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, we report the fabrication of co-assembled thin films composed of silver nanowires (NWs) and Au nanoparticles (NPs) at the liquid-liquid interface (water-chloroform) by vigorous shaking. The composition of co-assembled thin films can be controlled by adjusting the concentration of the nanosized building blocks. As a versatile interfacial assembly method, other nanoparticles such as Ag2S and Fe3O4 NPs can also be co-assembled with Ag NWs using the same procedure. Meanwhile, the co-assembly state of the obtained Au NPs and Ag NWs makes a significant contribution to the high sensitivity of surface-enhanced Raman scattering (SERS) to model the molecule 3,3'-diethylthiatricarbocyanine iodide (DTTCI). The SERS intensities show high dependence on the molar ratio of Au NPs and Ag NWs and the layer number of the co-assembled thin films. This shaking-assisted liquid-liquid assembly system has been proved to be a facile way for co-assembling nanowires and nanoparticles, and will pave a way for further applications of the macroscopic co-assemblies with novel functionalities.

引用

页码：4223 / 4229

页数：7

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