Ultra low cost triboelectric energy harvesting solutions for embedded sensor systems

In this paper we present a triboelectric generator realized with ultra-low cost materials, assembled using a very simple in-house fabrication facility. The triboelectric generator is designed to harvest the mechanical energy from shocks. Different combinations of low-cost materials such as acetic, neutral and acrylic silicone was explored to increase device performances. The device prototypes have been characterized in various working conditions generating up to 25μW output power with variable resistive load, making this technology solution very attractive for embedded energy-autonomous sensors.