Stretching-insensitive stretchable and biocompatible triboelectric nanogenerators using plasticized PVC gel and graphene electrode for body-integrated touch sensor

Material selection and performance optimization strategies for a wearable friction nanogenerator (W-TENG)

“…Graphene is a material with extremely high electrical conductivity, and its electron mobility is much higher than that of the traditional electrode materials. 180 Kim et al 181 combined a graphene electrode with a PVC gel friction layer with an output voltage of 48 V and an output current of 2.5 μA based on the SE mode. In addition, the effects of the PVC gel and graphene electrode on humans when used for wearing were studied simultaneously, demonstrating the in vitro biocompatibility of the PVC gel-graphene electrode, which few had considered in the design of W-TENGs.…”

Tuning the Electromechanical Response of P(VDF-TrFE)/ZnSnO3-Based Binary Piezoelectric Composites for Biomechanical Energy-Harvesting and Self-Powered Mechanosensing

“…Mechanical energy harvesting by using polymer-based flexible piezoelectric, triboelectric, and hybrid devices is perhaps the most widely studied research topic in present days, especially in the field of strain sensing, vibration sensing, and small electronics. , Due to their excellent performance, they are now being used in biomedical fields and healthcare monitoring too. , For this purpose, different non-piezoelectric polymers like polydimethylsiloxane (PDMS), ecoflex, etc., hydrogels like poly­(vinyl alcohol) (PVA), gelatine, etc., and piezoelectric polymers like poly­(vinylidene fluoride) (PVDF) and its co/ter-polymers, thermoplastic polyurethane (TPU), cellulose, nylon-11, poly­(vinyl chloride) (PVC), etc. have been utilized by researchers all over the globe.…”

Paddy-Straw-Derived Graphene Quantum Dots Reinforced Vertical Aligned Zinc Oxide Nanosheet-Based Flexible Triboelectric Nanogenerator for Self-Powered UV Sensors and Tribotronics Application

“…In addition, various metal nanoparticle decorations on polymers or thin films have been incorporated to improve the device performance . The TENG devices have also been used to fabricate the various self-powered nanosensors such as pH, UV, thermal, tactile sensing, gas sensors, humidity, heavy element, and pressure devices. − Recently, tribotronics application was also discovered by the Wang group. − However, for tribotronics application, smart and functional materials including semiconductors, dielectrics, and metals are urgently required. Among various nanoscale functional materials, two-dimensional (2D) materials have received prominent attention owing to their exceptional properties.…”