Journal
NANO ENERGY
Volume 32, Issue -, Pages 125-129Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2016.11.050
Keywords
Zinc oxide nanofilm; Energy harvest; Wave energy; Transparent; Flexible; Waving potential
Categories
Funding
- 973 program [2013CB932604, 2012CB933403]
- National NSF of China [51472117, 91023026, 11172124, 51375240, 51002076]
- Jiangsu Province NSF [BK20130781, BK2011722]
- Research Fund of State Key Laboratory of Mechanics and Control of Mechanical Structures [0414K01]
- NUAA Fundamental Research Funds [NP2015203]
- Jiangsu Innovation Program for Graduate Education [CXZZ13_0150]
- PolyU grant [1-ZVGH]
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Harvesting wave energy based on waving potential, a newly found electrokinetic effect, is attractive but limited mainly to monolayer graphene. Here we demonstrate that moving a transparent flexible ZnO nanofilm across the surface of ionic solutions can generate electricity. The generated electricity increases linearly with the moving velocity with an open-circuit voltage up to tens of millivolt and a short-circuit current at the order of microampere. The harvested electricity can be efficiently scaled up through series and parallel connections. Theoretical simulations show that it is the proper electrical property that endows the ZnO nanofilm with the outstanding capacity in harvesting the wave energy.
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