Research Progress on the Field-Effect Transistors Sensors for CO2 Gas Based on 1-D or 2-D Nanomaterials: A Review

Due to the excessive emission of CO2 has irreversible consequences on the global ecosystems and environments, the detection of carbon dioxide (CO2) with high efficiency and sensitivity has become imperative in environmental monitoring. The field-effect transistors (FETs), as emerging detection tools, hold significant potential applications in the analysis and detection of CO2 gas. Over the past decade, the research on the FET sensors for CO2 gas based on 1-D and 2-D nanomaterials has made great progress because they have important advantages in terms of sensing performance compared with the bulk, powder, and microstructure counterparts. For comprehensively learning about the status of 1-D and 2-D nanomaterials in CO2 gas FETs sensor, the research progress on the CO2 gas FETs sensor in domestic and abroad was deeply reviewed. The key aspects and technical challenges related to this research, along with the obstacles faced by CO2 gas FET sensors were discussed, and the future trends in FET-based CO2 gas sensors are outlined additionally.