UV-enhanced NO2 gas sensor based on electrospinning SnO2-ZnO composite nanofibers

3rd International Conference on New Material and Chemical Industry

材料科学;化学工业

Fan, X.X.^1 ; Xu, Y.J.^1 ; He, W.M.^1 ; Huang, X.^1 ; He, X.L.^2

School of Information Engineering, Huzhou University, Huzhou

313000, China^1

State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing

100190, China^2

关键词: Composite nanofibers;    Cycle tests;    Gas sensing properties;    Good stability;    Mass ratio;    NO2 gas sensor;    Ultra-violet light;    ZnO nanofibers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/479/1/012121/pdf
DOI  :  10.1088/1757-899X/479/1/012121

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this work, a sensor based on electrospinning SnO2-ZnO composite nanofibers with different parameters were prepared. For detecting of NO2 at room-temperature, the ultraviolet light was used to enhance the gas sensing properties. The influence of Sn salt on the resistance, grain size and response to NO2 was investigated. The results showed that the grain size was inhibited, the resistance was increased and the response to NO2 was enhanced with the addition of Sn salt. The fibers with Sn salt mass ratio of 10% exhibited greatest sensitivity to NO2 and good stability in cycle test. At last, a mechanism about UV-enhanced gas sensing properties of SnO2-ZnO nanofibers was discussed.