Figure 2
(a) The GO/Kapton based CS- TENG properties. The schematic representation of the GO paper/Kapton TENG mechanism (b) The rectified output voltage of TENG progress vs. time in the grounded and non-grounded systems. (c) The evolution of the power density versus load resistance (RL). (d) The output voltage of the TENG over time; three zones of very low (i), medium (ii) and large enough (iii) which is more clear in the semi-log of the TENG current vs. RL.
