我们报告了一盏灯,灵活,和低功耗聚(离子液体)/氧化铝复合CO2传感器。我们监测直流电阻变化作为CO2浓度和相对湿度的函数,并展示快速和可逆的传感动力学。此外,在交流阻抗测量的基础上,我们提出了一种与质子传导和气体扩散有关的传感机制。本文提出的发现将促进有机/无机复合CO2气体传感器的发展。在未来,这种传感器将是有用的许多实际应用范围从室内空气质量控制到生产过程的监测。
We report a light, flexible, and low-power poly(ionic liquid)/alumina composite CO2 sensor. We monitor the direct-current resistance changes as a function of CO2 concentration and relative humidity and demonstrate fast and reversible sensing kinetics. Moreover, on the basis of the alternating-current impedance measurements we propose a sensing mechanism related to proton conduction and gas diffusion. The findings presented herein will promote the development of organic/inorganic composite CO2 gas sensors. In the future, such sensors will be useful for numerous practical applications ranging from indoor air quality control to the monitoring of manufacturing processes.