Fig. 5: Application of selected PVC film as friction for DC-TENG.
From: Selection rules of triboelectric materials for direct-current triboelectric nanogenerator
a The stacked bar plot of normalized properties of PVC, PTFE, FEP, PEEK, PI, and PVDF. b The effective charge density of microstructure-designed DC-TENG with different DC units. c Comparison of the charge density of TENGs15, 24,25,26,27,28. d Photograph of rotary DC-TENG ((i) stator (scale bar: 1.0 cm), (ii) partial enlarged detail of stator (scale bar: 1.5 mm), (iii) SEM image of stator (scale bar: 250 μm) and (iv) rotor (scale bar: 1.0 cm)). e Output current of rotary DC-TENG with PVC as triboelectric material under various rotating speeds. f Charging curves of capacitors (10, 47, 110 µF) charged by rotary DC-TENG with PVC as triboelectric material (600 r min−1). g Photograph of driving commercial LED bulbs and thermo-hygrometer directly by rotary DC-TENG with PVC as triboelectric material (600 r min−1, scale bar: 2.0 cm). h Monitored voltage of the 660 µF commercial capacitors with driving thermo-hygrometer simultaneously by rotating DC-TENG with PVC as triboelectric material (600 r min−1).
