fig2
Figure 2. (A) Assembly process of Zn-CP@EC-based TENG. (B) KPFM surface potential of Zn-CP @EC with different weight ratios, respectively. (C and D) Isc and Voc of the TENGs based on Zn-CP@EC with different doping ratios, respectively. (E) Isc and Voc of the TENGs based on Zn-CP@EC under different operating frequencies. (F) Isc and Voc of 10% Zn-CP@EC-based TENG after working 50,000 cycles.







