Study on Temperature-dependent Gas Sensing of Reduced Graphene Oxide Thin Filmd
In this paper, reduced graphene oxide (RGO) thin film were prepared by spin-coating method to detect NO2 gas at different temperatures.Results showed that the sensing response to 10ppm NO2 increased with elevating temperature ranging from 25℃ to 120℃, while the recovery ratio attained largest at 100℃.In addition, electric resistance of RGO sensors would undergo a continuous decrease with rising temperature, which was consistent with semiconducting properties.Meanwhile, the dynamic transients indicated that the duration time of fast response part reached biggest at 100℃.The effect of gas flow rate on AR/R0 showed that R decreased as flow rate rose, and vice versa.Annealing at 300℃ substantially eliminated this fluctuation to a negligible level.
Nitrogen dioxide Reduced graphene oxide Gas sensor temperature-dependent sensing
Zhou Yong Liu Guoqing Huang Yukun Du Jihe Ren Hao Zhu Xiangyi Zhu Lisha
Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqin Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqin
国内会议
成都
英文
181-184
2016-10-14（万方平台首次上网日期，不代表论文的发表时间）