Journal
ACS NANO
Volume 12, Issue 5, Pages 4280-4285Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b08716
Keywords
energy harvesting; contact electrification; water wave; self-powered; wireless sensing
Categories
Funding
- National Key RAMP
- D Project from Ministry of Science and Technology [2016YFA0202701, 2016YFA0202703]
- National Science Foundation of China [51572030]
- Beijing Natural Science Foundation [2162047]
- China Thousand Talents Program
- Chongqing Research Program of Basic Research and Frontier Technology [cstc2016jcy-jA0236]
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Harvesting water wave energy presents a significantly practical route to energy supply for self powered wireless sensing networks. Here we report a networked integrated triboelectric nanogenerator (NI-TENG) as a highly adaptive means of harvesting energy from interfacing interactions with various types of water waves. Having an arrayed networking structure, the NI-TENG can accommodate diverse water wave motions and generate stable electric output regardless of how random the water wave is. Nanoscaled surface morphology consisting of dense nanowire arrays is the key for obtaining high electric output. A NI-TENG having an area of 100 x 70 mm(2) can produce a stable short-circuit current of 13.5 mu A and corresponding electric power of 1.03 mW at a water wave height of 12 cm. This merit promises practical applications of the NI-TENG in real circumstances, where water waves are highly variable and unpredictable. After energy storage, the generated electric energy can drive wireless sensing by autonomously transmitting data at a period less than 1 min. This work proposes a viable solution for powering individual standalone nodes in a wireless sensor network. Potential applications include but are not limited to long-term environment monitoring, marine surveillance, and off-shore navigation.
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