We report a high output performance of flexible nanogenerator (NG) based on the composite of PVDF and Zn:Al layered double hydroxide (LDH) nanosheets. The Zn:Al LDH nanosheets were synthesized via the most facile process by dipping the sputtered Al-doped ZnO (AZO)/Ag/AZO multilayer films into deionized water at room temperature. Here, sputtered AZO/Ag/AZO multilayer was served as a bottom electrode of the energy harvesting device as well as for the growth of Zn:Al LDH nanosheets. The PVDF based NG exhibited an output voltage of ~ 1.71 V and a current density of ~ 0.19 μA cm−2 after poling. While poled-PVDF/Zn:Al LDH composite based NGs exhibited an enhancement in the output performance with an output voltage and current density of ~ 6.24 V and ~ 0.655 μA cm−2, respectively. This simple facile approach can be feasible for the development of large-scale, flexible and an eco-friendly energy harvester that can be widely implemented in self-powered biomedical applications.
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This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (No. NRF-2013R1A4A1069528).
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Nguyen, T.M.T., Ippili, S., Eom, J. et al. Enhanced Output Performance of Nanogenerator Based on Composite of Poly Vinyl Fluoride (PVDF) and Zn:Al Layered-Double Hydroxides (LDHs) Nanosheets. Trans. Electr. Electron. Mater. 19, 403–411 (2018) doi:10.1007/s42341-018-0075-z
- Zn:Al LDH nanosheets
- Spin coating