PVDF-HFP encapsulated WSnanosheets in droplet-based triboelectric nanogenerators for possible detection of human Na/Kion concentration.

Here we report the liquid-solid interaction in droplet-based triboelectric nanogenerators (TENG) for estimation of human Na/Klevels. The exploitation of PVDF-HFP encapsulated WSas active layer in the droplet-based TENG (DTENG) leads to the generation of electrical signal during the impact of water droplet. Comparison over the control devices indicates that surface quality and dielectric nature of the PVDF-HFP/WScomposite largely dictates the performance of the DTENG.