Nowadays, the demand for implantable electronic devices is increasing day by day. All these devices require batteries which have a fixed life once they are drained need to be exchanged. Surgical techniques require to replace drained battery creating bodily and psychological distress to patients and enhancing health care budgets. Living beings have a plentiful source of energy in the form of thermal, chemical, and mechanical. These energies can overcome battery limitation and enhance the lifelong performance of wearable electronics. Herein, a technique to improve the current driving capability of triboelectric Nanogenerator (TENG) by using multilayer structure which enclosed in capsule type structure composed of biocompatible materials is proposed. In this work, five-layered zigzag TENG and five-layered stacked structures proposed for increasing the current capacity. The proposed designs comprised of nanostructure Polytetrafluoroethylene as tribo layer and Aluminium as second tribo layer as well as the top electrode, gold (Au) as the bottom electrode, Polyimide as a substrate layer. In COMSOL Multiphysics simulation is done to compare different size TENGs. Furthermore, a single unit of stacked design TENG with or without microstructure and comb electrodes simulated. For implantable electronics, triboelectric energy harvesting technique is one of the developing technologies has incredible scope in the selfpowered the system in treatment and diagnosis

Multiphysics, self-powered, biocompatible, triboelectric nanogenerator, energy harvesting