Journal
ACS NANO
Volume 7, Issue 12, Pages 11317-11324Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn405175z
Keywords
triboelectric nanogenerator; rhombic gridding structure; self-powered backpack; human walking
Categories
Funding
- Airforce (MURI), U.S. Department of Energy, Office of Basic Energy Sciences [DE-FG02-07ER46394]
- NSF [0946418]
- Chinese Academy of Science [KJCX2-YW-M13]
- Thousands Talents program, China
- Chinese Scholars Council
- National Natural Science Foundation of China (NSFC) [21275102]
Ask authors/readers for more resources
The triboelectric nanogenerator (TENG), a unique technology for harvesting ambient mechanical energy based on the triboelectric effect, has been proven to be a cost-effective, simple, and robust approach for self-powered systems. However, a general challenge is that the output current is usually low. Here, we demonstrated a rationally designed TENG with integrated rhombic gridding, which greatly improved the total current output owing to the structurally multiplied unit cells connected in parallel. With the hybridization of both the contact-separation mode and sliding electrification mode among nanowire arrays and nanopores fabricated onto the surfaces of two contact plates, the newly designed TENG produces an open-circuit voltage up to 428 V, and a short-circuit current of 1.395 mA with the peak power density of 30.7 W/m(2). Relying on the TENG, a self-powered backpack was developed with a vibration-to-electric energy conversion efficiency up to 10.62(+/- 1.19) %. And it was also demonstrated as a direct power source for instantaneously lighting 40 commercial light-emitting diodes by harvesting the vibration energy from natural human walking. The newly designed TENG can be a mobile power source for field engineers, explorers, and disaster-relief workers.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available