Figure 2

Fabrication of the capsulate TENG and experimental setup of the MC-TENG. (a) Experimental setup of the MC-TENG fabricated with the materials of copper and aluminum in the single-layered (mode 1), double-layered (mode 2) and non-layered (mode 3) structures. Design and fabrication of the capsulate TENG using (b) copper and (c) aluminum in mode 1 and mode 2 with different end magnets. (d) Design and fabrication of the copper/aluminum capsulate TENG in mode 3 with different end magnets (all the capsules were fabricated with 1 to 4 end magnets on 1 or 2 layers) (Conceptual images are created by SolidWorks 2017 SP4.1 https://www.solidworks.com/).