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Multifunctional TENG for Blue Energy Scavenging and Self‐Powered Wind‐Speed Sensor
Author(s) -
Xi Yi,
Guo Hengyu,
Zi Yunlong,
Li Xiaogan,
Wang Jie,
Deng Jianan,
Li Shengming,
Hu Chenguo,
Cao Xia,
Wang Zhong Lin
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201602397
Subject(s) - triboelectric effect , energy harvesting , nanogenerator , materials science , mechanical energy , energy (signal processing) , kinetic energy , voltage , vibration , energy transformation , electric potential energy , wind speed , work (physics) , wind power , environmental science , acoustics , electrical engineering , power (physics) , mechanical engineering , physics , meteorology , engineering , composite material , thermodynamics , quantum mechanics
Triboelectric nanogenerator (TENG) has been considered to be a more effective technology to harvest various types of mechanic vibration energies such as wind energy, water energy in the blue energy, and so on. Considering the vast energy from the blue oceans, harvesting of the water energy has attracted huge attention. There are two major types of “mechanical” water energy, water wave energy in random direction and water flow kinetic energy. However, although the most reported TENG can be used to efficiently harvest one type of water energy, to simultaneously collect two or more types of such energy still remains challenging. In this work, two different freestanding, multifunctional TENGs are successfully developed that can be used to harvest three types of energies including water waves, air flowing, and water flowing. These two new TENGs designed in accordance with the same freestanding model yield the output voltages of 490 and ≈100 V with short circuit currents of 24 and 2.7 µA, respectively, when operated at a rotation frequency of 200 rpm and the movement frequency of 3 Hz. Moreover, the developed multifunctional TENG can also be explored as a self‐powered speed sensor of wind by correlating the short‐circuit current with the wind speed.