期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 27, 期 -, 页码 133-136出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2012.11.013
关键词
AC electrodeposition; Nanowires; Nanoactuators
资金
- China Postdoctoral Science Foundation [20070420382]
An electrochemical deposition method using high-frequency alternating current (AC) signal is reported here for the in situ synthesis and assembly of Au nanowires and nanoactuators on microelectrodes without using any masks or templates. High conductivity of 3.79 +/- 0.14 x 10(7) Omega(-1) m(-1) is achieved on the Au nanowires assembled between electrodes. Au nanoactuators with expansion ratio of more than 500% can be fabricated at higher frequency. The actuators can act as claws to grab SiO2 nanoparticles in a water solution when driven by an alternating electric field. Disconnected nanowires and nanoparticles which self-aligned around the electrodes were also obtained at lower gold ion concentration, indicating a different current transfer mode in AC electrodeposition. (C) 2012 Elsevier B.V. All rights reserved.
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