Fig. 1: Friction and triboelectric performance of TENG with different triboelectric materials.
From: Selection rules of triboelectric materials for direct-current triboelectric nanogenerator
a Schematic diagram of DC-TENG. b The friction coefficient (μ) between Cu with various triboelectric layers and the polarization intensity of triboelectric layers at 10 kV cm−1 (error bars represent standard deviation). c The surface charge density of different triboelectric layers. d The electric field distribution curves in the gap between CCE and triboelectric layers’ surface (simulated by COMSOL software) and e corresponding summary of average electric field (the inset is the simulated result of PVC film).
