期刊
NANOSCALE
卷 4, 期 20, 页码 6568-6573出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nr31031g
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类别
资金
- NSFC [60777009]
- Key Laboratory Projects of the Education Department of Liaoning Province [20060131]
- Fundamental Research Funds for the Central Universities [DUT11LK46]
- China Ministry of Education [20070141038]
- Laboratory for MEMS, Liaoning Province
Nanogenerators capable of harvesting energy from environmental mechanical energy are attractive for many applications. In this paper, we present a simple, low-cost approach to convert low-frequency mechanical energy into electric power using piezoelectric ZnO nanorods grown on a common paper substrate. This energy conversion device has ultrahigh flexibility and piezoelectric sensitivity and can produce an output voltage of up to 10 mV and an output current of about 10 nA. It is demonstrated that the device's electric output behavior can be optionally changed between four types of mode simply by controlling the straining rate. Furthermore, it is also shown that the electric output can be enhanced by scaling the size of the device. This energy-harvesting technology provides a simple and cost-effective platform to capture low-frequency mechanical energy, such as body movements, for practical applications.
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