详细信息
臭氧处理对石墨烯基NO_2气体传感器气敏性影响
Effect of ozone treatment on gas-sensitivity of graphene-based NO_2 gas sensor
文献类型:期刊文献
中文题名:臭氧处理对石墨烯基NO_2气体传感器气敏性影响
英文题名:Effect of ozone treatment on gas-sensitivity of graphene-based NO_2 gas sensor
作者:侯书勇[1];胡竹斌[1];管福鑫[1];李春阳[2];谢海芬[1]
机构:[1]华东理工大学物理系,上海200237;[2]华东理工大学无机材料系,上海200237
年份:2014
卷号:33
期号:8
起止页码:15
中文期刊名:传感器与微系统
外文期刊名:Transducer and Microsystem Technologies
收录:CSTPCD;;北大核心:【北大核心2011】;CSCD:【CSCD2013_2014】;
基金:2012年全国大学生创新计划资助项目(121025155)
语种:中文
中文关键词:石墨烯;臭氧处理;NO2;气敏性
外文关键词:graphene; ozone treatment; NO2; gas sensitivity
摘要:通过臭氧处理制备了一种简单、高效、可重复使用的单层石墨烯基NO2气体传感器,并研究了纯的和经过臭氧处理的NO2气体传感器的响应特性和恢复特性。实验表明:经臭氧处理75s后的石墨烯基气体传感器对10×10-6NO2响应度可达到30%以上,是未经臭氧处理的石墨烯基气体传感器的2.8倍,且其响应的最低体积分数达150×10-9,低于世界卫生组织(WHO)空气质量标准(200×10-9,1h平均值)。
A simple, high-efficient and reproducible single-layer graphene-based NO2 gas sensor is fabricated with ozone treatment method, and response and recovery characteristic of NO2 gas sensors based on the pristine and ozone treated single-layer graphene are investigated. Experiment shows sensitivity of ozone-treated graphene by 75 s to 10×10^-6 NO2 exceeds 30 % ,which is 2.8 times more than sensitivity of the pristine graphene, and detection limit of volume fraction of NO2 is estimated to be 150 ×10^-9 ,which is lower than the World Health Organization (WHO) air suality Standards (200×10^-9 ,lh average value).
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