fig2
Figure 2. Output performance of the F-TENG. (A) Schematic diagram of the reciprocating motion platform; (B) Effect of reciprocating motion frequency on output performance; (C) Effect of external pressure on output performance; (D) Current and peak power measurements at different impedances. F-TENG: Freestanding-mode triboelectric nanogenerator; NBR: nitrile butadiene rubber; PTFE: polytetrafluoroethylene.
