Elasto-Aerodynamics-Driven Triboelectric Nanogenerator for Scavenging Air-Flow Energy.
Efficient scavenging the kinetic energy from air-flow represents a promising approach for obtaining clean, sustainable electricity. Here, we report an elasto-aerodynamics-driven triboelectric nanogenerator (TENG) based on contact electrification. The reported TENG consists of a Kapton film with two Cu electrodes at each side, fixed on two ends in an acrylic fluid channel. The relationship between the TENG output power density and its fluid channel dimensions is systematically studied. TENG with a fluid channel size of 125 × 10 × 1.6 mm(3) delivers the maximum output power density of about 9 kW/m(3) under a loading resistance of 2.3 MΩ. Aero-elastic flutter effect explains the air-flow induced vibration of Kapton film well. The output power scales nearly linearly with parallel wiring of multiple TENGs. Connecting 10 TENGs in parallel gives an output power of 25 mW, which allows direct powering of a globe light. The TENG is also utilized to scavenge human breath induced air-flow energy to sustainably power a human body temperature sensor.
Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China.
Shuhua
S
Wang
Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR) , Singapore 117685, Singapore.|Defense Key Disciplines Lab of Novel Micro-nano Devices and System Technology, International R & D center of Micro-nano Systems and New Materials Technology, Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University , Chongqing 400044, China.
Xiaojing
X
Mu
Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China.
Xue
X
Wang
Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR) , Singapore 117685, Singapore.
Alex Yuandong
AY
Gu
Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China.|School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States.
Zhong Lin
ZL
Wang
Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences , Beijing 100083, China.
Ya
Y
Yang
D000388:Air / Q000032:analysis; D001831:Body Temperature; D004548:Elasticity; D011211:Electric Power Supplies; D004560:Electricity; D004566:Electrodes; D004867:Equipment Design; D006801:Humans; D036103:Nanotechnology / Q000295:instrumentation*; D013821:Thermometers; D014732:Vibration
aero-elastic flutter effect; air-flow energy; self-powered; temperature sensor; triboelectric nanogenerator