Comparative CO2-Sensing Characteristic Studies of PEI and PEI/Starch Thin Film Sensors

摘要：

In this paper, pure PEI and PEI/Starch thin film sensors were fabricated to detect carbon dioxide (CO2).Films were characterized by ultravioletvisible spectroscopy (UV-Vis).The quartz crystal microbalance sensors (QCM), coated with the two selected films by the spin-coating method, showed good sensitivities to CO2 gas with concentrations in the range (0.1％-0.5％) at room temperature.In addition, the dependence of temperature on the properties of sensors was studied.It was found that the polyethyleneimine (PEI)/Starch nanocomposite thin film sensor exhibited a better CO2-sensing property than that of a pure polyethyleneimine (PEI) thin film sensor.

关键词： Polyethyleneimine starch QCM carbon dioxide Sensor

作者: Bin Sun Guangzhong Xie Yadong Jiang Xian Li

作者单位: School of Optoelectronic Information,State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China

会议类型: 国际会议

会议名称: 2011 IEEE International Conference on Smart Grid and Clean Energy Technologies(2011 IEEE智能电网与清洁能源技术国际会议 ICSGCE2011)

会议地点: 成都

会议语种:英文

页码: 456-459

在线出版日期: 2011-09-27（万方平台首次上网日期，不代表论文的发表时间）