A PET/Graphite-Based Triboelectric Nanogenerator for Monitoring the Health of Leg Muscles in Football

Figure 4

(a, b) The electrical output of PG-TENG under different tensile amplitudes. (c, d) The output voltage, output current, and output power density of PG-TENG under different resistance. (e) The charging curves of PG-TENG for a 2 μF capacitor under different working frequencies. (f) The charging curves of PG-TENG for different capacitors under the frequency of 2 Hz.

(a)

(b)

(c)

(d)

(e)

(f)