Phys.org  December 9, 2024 Gel-based sensors typically depend on a metal grid connection, which is susceptible to structural deformation under heavy stress applications and necessitates external power. Researchers in South Korea developed gel polymer electrode-based triboelectric nanogenerator (GPE-TENG) that was stretchable, semi-transparent, and durable, designed to enable a self-powered touch panel for intelligent touch perception. The ionic polymer gel encapsulated within the ecoflex ensured robust adhesion of the ionic conductive polymer gel (PEO/LiTFSI) to the ecoflex layers. It demonstrated high durability, enduring stretching of approximately 375 % and sustaining heavy mechanical deformations over a long period without loss of functionality. […]