期刊
NANO ENERGY
卷 104, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2022.107992
关键词
Water droplet; Triboelectric nanogenerator; Cantilever beam; Response time; Hybridized nanogenerator
类别
资金
- National Natural Science Foundation of China [12172359, 52072041]
- Beijing Municipal Natural Science Foundation [2202066]
- Key Research Program of Frontier Sciences of the Chinese Academy of Sciences [ZDBS-LY-JSC014]
- CAS Interdisciplinary Innovation Team [JCTD- 2020-03]
- National Key R & D Project from the Minister of Science and Technology in China [2021YFA1201604]
- Beijing Natural Science Foundation [JQ21007]
- University of Chinese Academy of Sciences [Y8540XX2D2]
- Opening fund of State Key Laboratory of Nonlinear Mechanics [LNM202207]
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology [DMETKF2022014]
This article proposes a new design strategy to increase the current of the water droplet nanogenerator by simultaneously scavenging the mechanical energy of the liquid-solid contact and the deformation energy. A droplet-based triboelectric-piezoelectric hybridized nanogenerator (TPiHNG) with a cantilever beam structure is fabricated under this strategy, achieving more efficient scavenging of water droplet energy.
Water droplet energy has received much attention as a newborn renewable energy source. Triboelectric nano -generators (TENGs) demonstrates enormous application in scavenging mechanical energy. Nowadays, the water droplet nanogenerator based on liquid-solid TENG has been greatly improved. However, these water droplet nanogenerators scavenge the mechanical energy of liquid-solid contact of water droplets by TENG, but not the deformation energy of the substrate. Here, we propose a new design strategy to increase the current of the water droplet nanogenerator through simultaneous scavenging of the mechanical energy of the liquid-solid contact and the deformation energy. A droplet-based triboelectric-piezoelectric hybridized nanogenerator (TPiHNG) with cantilever beam structure was fabricated under the strategy. The TPiHNG has a significantly higher current compared to TENG. The response time difference between piezoelectric nanogenerator (PiENG) and TENG is proposed for the first time as an important parameter of TPiHNG. This work provides a novel approach to scavenge water droplet energy more efficiently.
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