Abstract
We propose a very simple and cost-efficient approach to fabricate high-performance TENG based on paper and graphite pencil. On the other hands, we propose a novel device, which can utilize ambient vibration with wideband and low frequencies. As the power sources of wireless sensors, batteries are mainly utilized until now. These days, devices of energy harvesting become more focused. Energy harvesting is a methodology of scavenging power from ambient energy sources such as solar, thermal and vibration without the need for batteries. Due to high stiffness of piezo electric energy harvesters, resonant frequency of the piezo electric energy harvesters tends to be much higher than ambient vibrational frequency. To solve these problems, the proposed energy-harvesting device is to utilize a stochastic resonance.
