FREESTANDING MODE TRIBOELECTRIC NANOGENERATOR FOR SELF POWERING IN AUTOMOTIVES

The triboelectric nanogenerator (TENG) has emerged as a promising technology for converting ambient mechanical energy into electricity through the coupling of triboelectrification and electrostatic induction effects. This study explores the electrical output performance of a freestanding mode TENG with five-electrode interdigitated design through finite element analysis simulations in COMSOL Multiphysics. The open-circuit voltage (Voc) and transferred charge density (Δσsc) serve as the primary benchmarks evaluated. The open-circuit voltage (Voc) and transferred charge density (Δσsc) are evaluated across the electrode array. The simulations demonstrate that as d increases from initial contact to full separation, Voc remarkably increases from 60V to 6300V. Similarly, increasing σsc from 10 to 30 C/m2. These results highlight how the interdigitated geometry coupled with optimized dielectric properties can achieve exceptionally high Voc levels up to 6.3 kV, which is promising for powering portable electronics and sensors in automotives.