A ferroelectric nanocomposite-film-based device for harvesting energy from water droplets using both piezoelectric and triboelectric effects.
| Autor: | Singh HH; Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, Delhi-110016, India., Khare N; Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, Delhi-110016, India. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | Nanotechnology [Nanotechnology] 2021 Sep 08; Vol. 32 (48). Date of Electronic Publication: 2021 Sep 08. |
| DOI: | 10.1088/1361-6528/ac171b |
| Abstrakt: | In this paper, we have demonstrated a novel design of a liquid-solid interface triboelectric nanogenerator based on a ZnO- polyvinylidene fluoride (PVDF) flexible ferroelectric film that employs both piezoelectric and triboelectric properties to produce more electricity from water droplets. The present device gives an output voltage of ∼1.32 V and a short-circuit current of ∼0.32 μ A from the conventional liquid-solid triboelectric nanogenerator (LSTENG), while an additional open-circuit voltage of ∼2.72 mV and short-circuit current of ∼20 nA is generated from the piezoelectric effect. The mechanism for generating energy in both the piezoelectric and triboelectric components is also discussed. Furthermore, we explored the effect of ions in water on the performance of the LSTENG, and the results were confirmed by Kelvin probe force microscopy measurements. The current work reveals a new LSTENG design and the benefit of employing a ferroelectric polymer as the contacting material rather than other non-piezoelectric materials for the LSTENG. (© 2021 IOP Publishing Ltd.) |
| Databáze: | MEDLINE |
| Externí odkaz: |
|