Journal
NANO ENERGY
Volume 53, Issue -, Pages 698-705Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2018.09.043
Keywords
Fiberform power generator; Graphene oxide; Moisture; Hygroelectric generator
Categories
Funding
- National Key RAMP
- D Program of China [2017YFB1104300, 2016YFA0200200]
- NSFC [51673026, 51433005, 21671020, 21604003]
- Beijing Municipal Science and Technology Commission [Z161100002116022]
- NSFC-MAECI [51861135202]
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It is of great significance to develop the power generator that can proactively produce energy and apply it into next-generation wearable and self-powered electronics. Here, we fabricate a novel graphene oxide (GO)-based coaxial fiber-shaped hygroelectric generator (FHEG). The electricity generation under humidity variation results from the directional movement of charged hydrogen ions from GO. Under 70% humidity change, the FHEG can provide a high power density of similar to 0.21 mu W cm(-1). The energy output can be easily enhanced by simple connection in series/parallel manner. Moreover, FHEG exhibits the outstanding shaping engineering characteristic, which can be transferred into diverse shapes and architectures on demand. Its excellent compatibility with woven fabrics enables the form-factor of electronic devices to be wearable and portable. Impressively, the integrated FHEG device can power many practical devices, indicating its widespread application in self-powered electronics and systems.
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