POS6-1608
Single electrode piezo-enhance triboelectricity: A stable hybrid device with vertically aligned ZnO nanoflakes and MXene/Ecoflex encapsulation
When and Where
Nov 30, -0001
00:00 - 00:00
Room 301 (Grand Ballroom)
Presenter(s)
Abdul Saboor (Department of Chemistry, University of Ulsan)
Co-Author(s)
Abstract
The increasing demand for sustainable energy has driven the development of nanogenerators capable of harvesting ambient mechanical energy for self-powered electronics. Here, we present a single-electrode piezo-enhanced triboelectric hybrid nanogenerator by encapsulating vertically aligned ZnO nanoflakes (thickness <10 nm) grown on a nickel substrate within a MXene/Ecoflex triboelectric layer. The vertically aligned ZnO nanoflakes provide intrinsic piezoelectricity while enhancing triboelectric charge generation through polarization, whereas the MXene/Ecoflex composite serves as a high-performance triboelectric layer and flexible encapsulation that improves both mechanical durability and environmental protection. By integrating piezoelectric and triboelectric mechanisms into a single architecture, the device effectively harvests diverse forms of mechanical energy, including deformation and contact–separation motions. The fabricated hybrid nanogenerator delivered an output voltage of up to 800 V under mechanical excitation. Furthermore, the device successfully powered light-emitting diodes (LEDs), charged capacitors, and was demonstrated as a 3 × 3 self-powered tactile sensor array for handwritten letter recognition. Human-body motion tests further confirmed the contribution of the piezoelectric component during practical operation. These results demonstrate a simple, flexible, and durable hybrid nanogenerator with significant potential for wearable energy harvesting and intelligent self-powered sensing applications.
