Gas Microsensors Based on Polymer-Carbon Black Composites

作     者：Qiudong Yang~([a]) Haifen Xie~([a b]) Xiaoxiang Sun~([a]) Yiping Huang~([a]*) ASIC and System State Key Lab Department of Microelectronics Fudan University Handan Road 220 Shanghai 200433 [b]Department of Physics East China University of Science and Technology Xuefu Road 1000 Jinshan District Shanghai 

会议名称：《2004 7th International Conference on Solid-State and Integrated Circuits Technology（ICSICT 2004）》

会议日期：2004年

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

关 键 词：micro-sensors gas sensors polymer carbon black 

摘      要：正In this paper,we describe a novel chemical gas sensor arrays based on polymer-carbon black *** four different polymers which are poly（4-vinyl phenol）, poly（ethylene oxide）,polycapraclactone（PCL）and polyethylene-co-vinylacetate（PEVA）are employed as the sensing materials which are immobilized on the array of the interdigitated microelectrode *** resistance changes of sensors to four organic gases （acetone,ethanol,toluene and methanol）at 500ppm concentration have been *** principle component analysis of responses of micro-sensors,it is clear that four kinds of the same concentration different gases can be easily *** some gases such as ethanol and acetone are detected using the sensing membrane of poly（4-vinyl phenol）and poly（ethylene oxide）,the relationship between the resistance changes and gas concentration in the range from 300ppm to 1500ppm can be approximated to a straight line.