학술논문
V2CTx /PVDF-HFP Composite Nanofibers-Based Self-Powered Pressure Sensor for Human Foot Pressure and Activity Monitoring
Document Type
Conference
Source
2023 IEEE 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS), 2023 IEEE 22nd International Conference on. :41-44 Dec, 2023
Subject
Language
Abstract
Herein, novel self-powered triboelectric pressure sensor (STPS) utilizing V2CT x @Polyvinylidene fluoride-co-hexafluoropropylene (V2CT x @PVDF-HFP) composite nanofiber and Polyethylene oxide (PEO) nanofiber is proposed for real-time human activity monitoring. The method involves incorporating V2CTx nanosheets into P(VDF-HFP) matrix through electrospinning, resulting in a highly negative triboelectric layer with increased surface-charge density and dielectric constant. The abundant functional groups on V 2 CT x surfaces enhance electronegativity, while micro-capacitor formation within the polymer-matrix enhances the dielectric property resulting into three-fold performance enhancement. The fabricated STPS exhibited exceptional attributes, including high electrical output (7.21 mW) and remarkable mechanical sensitivity (25.59 V/kPa) at low pressure. On the basis of its efficacy, the STPS was successfully demonstrated for real-time monitoring of foot pressure and human activity during walking, running, and jumping.