Polyelectrolytes as a Stable and Tunable Platform for Triboelectric Nanogenerators.

ABSTRACT: Polyelectrolytes (PEs) provide a versatile material system for improving the efficiency and stability of triboelectric nanogenerators (TENGs). Compared to conventional ionic liquids (ILs), which suffer from leakage, environmental instability, and limited durability, PEs feature covalently tethered ionic groups that enable precise tribopolarity control while preventing unwanted ion migration. By systematically varying polymer backbones and ionic compositions, including two polycations and three polyanions, tunable triboelectric behavior is demonstrated using Kelvin Probe Force Microscopy, time-of-flight secondary ion mass spectrometry, and TENG output measurements. The polymethyl acrylate (PMA)-based polycation with 20% ion inclusion shows strongly tribopositive behavior, producing 83 V com

SUBMITTER: Joo H 

PROVIDER: S-EPMC12531733 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature