Research / 2021 / Article / Fig 4

Review Article

Hybrid Triboelectric Nanogenerators: From Energy Complementation to Integration

Figure 4

Theoretical comparison and of EMG and TENG and theoretical analysis of the contact-mode hybrid nanogenerator (HG): (a) the working principle of piezoelectric nanogenerator (PENG); (b) the working principle of TENG [71]; (c) schematic diagram of the device of HG; (d) the curves of motion-time and force-time; (e) the working mechanism of the HG; (f) equivalent circuit of the HG to charge two capacitors [72] (reproduced with permission. Copyright John Wiley and Sons, 2016).