Abstract
Liquid-flow-induced generation of electricity using nanocarbons, particularly graphene-water interface, has received attention for energy harvesting. Here, we have obtained voltage generation from a single water droplet motion on graphene. We have investigated the effect of the graphene surface condition on flow-induced voltage generation, which is controlled by heteroatom doping. Nitrogen-doped graphene shows three times higher voltage generation compared to pristine graphene due to the doping-induced surface charge of graphene. Graphene surface potential tuning by doping is shown to play an important role in voltage generation.
Original language | English |
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Article number | 023902 |
Journal | Applied Physics Letters |
Volume | 112 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2018 Jan 8 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)