期刊
NANOTECHNOLOGY
卷 29, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aa9a22
关键词
nanowire assembly; dielectrophoresis; alignment; multi-step assembly
资金
- National Natural Science Foundation of China [51505082, 51375089, 51505083]
- Natural Science Foundation of Jiangsu Province [BK20150606]
- '333' Project of Jiangsu Province [BRA2015291]
- Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems [GZKF-201501]
- Fundamental Research Funds for the Central Universities
Nanowire assembly based on dielectrophoresis (DEP) could be a useful and efficient tool for fabricating nanowire-based devices. Although there have been extensive reports on the DEP nanowire assembly, the new approaches that make DEP more facile and affordable are still desirable. Herein, we present an approach using the reusable electrodes to assemble silver nanowires onto a removable, independent polyethylene terephthalate (PET) film. The PET film is placed on the reusable electrodes, and a sinusoidal AC voltage is applied to the electrodes to induce DEP force for nanowire assembly upon the flexible film. We explore the influences of voltage, frequency and film thickness on nanowire assembly and further realize the assembly of silver nanowire arrays. In addition, the induced electric field is rotated in two consecutive steps to assemble the rectangular mesh-like nanowire networks. This reusable and facile approach for DEP nanowire assembly could provide a low-cost, precise, rapid and convenient tool for applications in the fields of flexible electronics.
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