A Novel Triboelectric Nanogenerator Based on Chitosan-Cotton-Paper Film for Biomechanical Energy Harvesting and Grip Force Motion Sensing

Recently, triboelectric nanogenerators (TENGs) have proven to be promising energy harvesters, but they can also play the role of self-powered human motion sensors. Thus, we design a TENG device based on chitosan-cotton-paper (CCP-TENG) to harvest mechanical energy and serve as a self-powered sensor. The chitosan-cotton-paper (CCP) film and PTFE were used as the triboelectric materials, and aluminum foil served as the conductive electrode. According to results, the CCP-TENG can realize an open-circuit voltage ( V oc ) of 162 V and a short-circuit current ( I sc ) of 7.2 μA. Meanwhile, the maximum output power density of the CCP-TENG can reach 322.56 mW/m 2 with a match load of 20 MΩ. In addition, the CCP-TENG can be used as a self-powered grip force sensor, which has important application value in human health monitoring. This study suggests a simple, environmentally friendly way to make TENGs for biomechanical energy generating and tracking human movement.