Harvesting vibration energy by a triple-cantilever based triboelectric nanogenerator
triboelectric nanogenerator, harvesting vibration energy, triple-cantilever, self-powered systems
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 μA with a peak power density of 252.3 mW/m2. 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.
Tsinghua University Press
Weiqing Yang,Jun Chen,Guang Zhu,Xiaonan Wen,Peng Bai,Yuanjie Su,Yuan Lin,Zhonglin Wang, Harvesting vibration energy by a triple-cantilever based triboelectric nanogenerator. NanoRes.2013, 6(12): 880–886