The self-powered CO2 gas sensor based on gas discharge induced by triboelectric nanogenerator

Here, a self-powered CO2 gas sensor is developed based on the gas discharge induced by the triboelectric nanogenerator (TENG). As CO2 is added into N2, the negative CO2 ions produced in the discharge process change the discharge characteristics. The TENG-based self-powered CO2 gas sensor operates at room temperature, has high detection sensitivity and requires no external power supply, which has potential applications for constructing gas sensing networks oriented to IoT.199