Journal
NANO RESEARCH
Volume 6, Issue 12, Pages 880-886Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-013-0364-0
Keywords
triboelectric nanogenerator; harvesting vibration energy; triple-cantilever; self-powered systems
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Funding
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-FG02-07ER46394]
- National Science Foundation (NSF) [0946418]
- Chinese Academy of Sciences [KJCX2-YW-M13]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [0946418] Funding Source: National Science Foundation
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Triboelectric nanogenerators (TENG), a unique technology for harvesting ambient mechanical energy based on triboelectric effect, have been proven to be a cost-effective, simple and robust approach for self-powered systems. Here, we demonstrate a rationally designed triple-cantilever based TENG for harvesting vibration energy. With the assistance of nanowire arrays fabricated onto the surfaces of beryllium-copper alloy foils, the newly designed TENG produces an open-circuit voltage up to 101 V and a short-circuit current of 55.7 mu A with a peak power density of 252.3 mW/m(2). The TENG was systematically investigated and demonstrated as a direct power source for instantaneously lighting up 40 commercial light-emitting diodes. For the first time, a TENG device has been designed for harvesting vibration energy, especially at low frequencies, opening its application as a new energy technology.
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