期刊
ADVANCED FUNCTIONAL MATERIALS
卷 27, 期 22, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201700551
关键词
capillary flow; energy harvesting; evaporation; porous carbon film; self-powered
类别
资金
- National Natural Science Foundation of China [51672097, 51606082, 51322210]
- National Program for Support of Top-Notch Young Professionals
- China Postdoctoral Science Foundation [2015M570639]
- Fundamental Research Funds for the Central Universities [HUST: 2015MS004]
- Director Fund of WNLO
Converting environmental waste energies into electricity via a natural process is an ideal strategy for environmental energy harvesting and supplying power for distributed energy-consuming devices. This paper reports that evaporation-driven water flow within an all-printed porous carbon film can reliably generate sustainable voltage up to 1 V with a power density of approximate to 8.1 mu W cm(-3) under ambient conditions. The output performance of the device can be easily scaled up and used to power low-power consumption electronic devices or for energy storage. Furthermore, the device is successfully used without electric storage as a direct power source for electrodeposition of silver microstructures. Because of the ubiquity of water evaporation in nature and the low cost of materials involved, the study presents a novel avenue to harvest ambient energy and has potential applications in low-cost, green, self-powered devices and systems.
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