Journal
MATERIALS RESEARCH EXPRESS
Volume 5, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/aaa563
Keywords
hybrid nanogenerator; triboelectric nanogenerator; vibration; self-powered
Categories
Funding
- National Key Research and Development Program of China [2016YFB0700305-05]
- National Natural Science Foundation of China [61504019]
- Scientific and Technological Projects for Distinguished Young Scholars of Sichuan Province [2017JQ0016]
- China Postdoctoral Science Foundation [2017T100687, 2015M580783]
- Postdoctoral Research Project of Sichuan Province [20160514]
- Fundamental Research Funds for the Central Universities of China [ZYGX2016J046]
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Hybrid energy harvesters based on different physical effects is fascinating, but a rational design for multiple energy harvesting is challenging. In this work, a spring-magnet oscillator-based triboelectric-electromagnetic generator (EMG) with a solar cell cap is proposed. A power was produced by a triboelectric nanogenerator (TENG) and an EMG independently or simultaneously by using a shared spring-magnet oscillator. The oscillator configuration enables versatile energy harvesting with the excellent size scalability and self-packaged structure which can perform well at low frequency ranging from 3.5 to 5 Hz. The solar cell cap mounted above the oscillator can harvest solar energy. Under vibrations at the frequency of 4 Hz, the TENG and the EMG produced maximum output power of 5.46 nW cm(-3) and 378.79 mu W cm(-3), respectively. The generated electricity by the hybrid nanogenerator can be stored in a capacitor or Li-ion battery, which is capable of powering a wireless locator for real-time locating data reporting to a personal cell phone. The light-weight and handy hybrid nanogenerator can directly light a caution light or play as a portable flashlight by shaking hands at night.
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