Journal
NANOTECHNOLOGY
Volume 31, Issue 24, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab793e
Keywords
self-powered system; self-powered sensor; environmental energy; triboelectric nanogenerator
Funding
- National Key R&D Project from the Minister of Science and Technology [2016YFA0202704]
- National Natural Science Foundation of China [51775049]
- Beijing Municipal Science & Technology Commission [Z171100000317001]
- Beijing Natural Science Foundation [4192069]
- Young Top-Notch Talents Program of Beijing Excellent Talents Funding [2017000021223ZK03]
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With the fast development of the Internet of Things, the energy supply for electronics and sensors has become a critical challenge. The triboelectric nanogenerator (TENG), which can transfer mechanical energy from the surrounding environment into electricity, has been recognized as the most promising alternative technology to remedy the shortcomings of traditional battery technology. Environmental mechanical energy widely exists in activities in nature and these environmental energy sources can enable TENGs to achieve a clean and distributed energy network, which can finally benefit the innovation of various wireless devices. In this review, TENGs targeting different environmental energy sources have been systematically summarized and analyzed. Firstly, we give a brief introduction to the basic principle and working modes of the TENG. Then, TENGs targeting different energy sources, from blowing wind and raindrops to pounding waves, noise signalling, and so on, are summarized based on their design concept and output performance. In addition, combined with other energy technologies such as solar cells, electromagnetic generators, and piezoelectric nanogenerators, the application of hybrid nanogenerators is elaborated under different scenarios. Finally, the challenges, limitations, and future research trends of environmental energy collection are outlined.
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