基于多壁纳米碳管的传感器对甲苯的气敏性研究

被引:9
作者
陈金霞
郭淼
陈文菊
李昱
李婷
张孝彬
陈裕泉
机构
[1] 浙江大学(玉泉校区)生物医学工程与仪器科学学院
[2] 浙江大学(玉泉校区)生物医学工程与仪器科学学院 杭州
[3] 杭州
关键词
多壁纳米碳管; 气敏传感器; 甲苯检测;
D O I
暂无
中图分类号
TP212.3 [生物传感器、医学传感器];
学科分类号
080202 ;
摘要
传感器的基底为Al2 O3 ,上面真空溅射了叉指金电极 ,在电极之间涂布微量多壁纳米碳管悬浊液 ,干燥后作为气敏膜。室温下测试电极暴露于甲苯气体前后的电阻变化 ,发现吸附了甲苯后电极的导电能力下降 ,且下降的幅度与被测甲苯浓度有良好的线性关系。该实验结果预示着多壁纳米碳管是一种良好的室温下检测甲苯的敏感材料。对该气敏响应的产生机理本文进行了一些初步的探讨。
引用
收藏
页码:39 / 42
页数:4
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