Understanding and modeling of triboelectric-electret nanogenerator

We report the modeling of gap closing triboelectric-electret nanogenerators (T-ENGs) and the study of their performances. The model developed agrees well with multiphysics time dependent finite element method simulations, having less than 3% discrepancy. The comparison with T-ENG experimental measurements shows very close shapes and amplitudes well synchronized, which validates the T-ENG model. This allows to better design T-ENG to maximize their performances. Finally, this model was used to extract the key parameters of a real T-ENG, offering a way to compare T-ENGs independently of mechanical stimulus.240