PVDF-HFP/PEDOT core/shell nanofibers with well-dispersed spherical bumps have been prepared using 3D electrospinning and vapor deposition polymerization methods, and their sponge-like 3D membranes are used to create piezoresistive-type pressure sensors. Owing to the enhanced porosity and pressure-tunable contact area, the sensors exhibit outstanding mechanoelectrical performance. Furthermore, large-area, wireless, 16 × 10 multi-array pressure sensors for spatiotemporal mapping of multiple pressing points and wearable bands for monitoring blood pressure have been fabricated from these 3D mats. The developed method opens up a new route for the mass production of polymer-based sensors, which is promising for biomedical diagnostics and environmental monitoring systems.
- O. Young Kweon
- Sang Jin Lee
- Joon Hak Oh
