Fig 1.
(a)–(d) Preparation of the BTONW-PVDF nanofibers.
(e) Design of TENG. (f) Digital picture of the assembled TENG.
Fig 2.
Schematic of the structure and working mechanism of TENG.
Fig 3.
Analytical image of TENG produced by nylon 11 and PVDF-BTONWs.
(a) Physical image of TENG. (b) Surface morphology of nylon-11 fibers. (c) Surface morphology of BTONWs -PVDF. (d)SEM images of BTONWs doped with different mass ratios. (e)Magnified images of BTONWs doped with different mass ratios. (f)XRD image of BTONWs. (g) XRD patterns of PVDF, BTONWs-PVDF film, and BTONWs before mixing with PVDF. (h)FTIR absorption spectra of BTONWs-PVDF nanofibres with different BTONWs mass fractions.
Fig 4.
BTONWs-PVDF electrical output image.
Image of (a) Short-circuit current. (b) Open-circuit voltage. (c) Transfer charge quantity. (d)Dielectric constant.
Fig 5.
Application of BTONWs-PVDF TENG as a power supply.
(a) Load output voltages (left axis), currents (right axis), and (b) instantaneous power densities of the optimized BTONWs-PVDF at load resistances of 0-1000 MΩ. (c) Different tapping times of the optimal TENG of BTONWs-PVDF related to measured voltage(d) External circuit diagram. (e) Physical diagram of TENG of BTONWs-PVDF. Photographs of (f) a calculator and (g) a timer in working condition. (h) A yellow LED and (i) a green LED to be lighted.
Table 1.
Comparison of different doping materials in TE layers.