Triboelectric nanogenerator with nanostructured metal surface using water-assisted oxidation

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The performance of a triboelectric nanogenerator (TENG) was effectively enhanced by forming nanostructures at the contacting interface. The contacting interface usually consists of metal and polymer surface, but the formation of nanostructures have only been actively studied for the polymer so far. In this work, a simple and effective route to forming nanostructures on the metal surface is proposed, using a water-assisted oxidation (WAO) process. The one-step WAO process requires only hot water without any complicated equipment and treatment. Using the WAO process, densely packed micro and nanostructures were successfully formed on three target metal surfaces: aluminum, copper, and zinc. The output power of the TENG was enhanced after the nanostructure formation because of the increased contact area. The influence of the process conditions on the nanostructure morphology was additionally analyzed to maximize the output power. The simple and low-cost WAO process is advantageous in terms of practicality. (C) 2016 Elsevier Ltd. All rights reserved
Publisher
Elsevier BV
Issue Date
2016-03
Language
English
Article Type
Article
Keywords

PIEZOELECTRIC NANOGENERATOR; ELECTROMAGNETIC GENERATOR; NANOWIRE ARRAYS; ENERGY; SUBSTRATE; OXIDE

Citation

NANO ENERGY, v.21, pp.258 - 264

ISSN
2211-2855
DOI
10.1016/j.nanoen.2016.01.021
URI
http://hdl.handle.net/10203/208484
Appears in Collection
EE-Journal Papers(저널논문)
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