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《Acta Photonica Sinica》 2018-10
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Optical Hydrogen Sulfide Gas Sensor Based on the Fluorescence Quenching of ZnCeS

YANG Xiao-zhan;LEI Yong;XIAO Hu;FENG Wen-lin;School of Science,Chongqing University of Technology;  
Zn_(0.97)Ce_(0.03)S optical gas sensing material was successfully prepared by high temperature solid phase method.A gas sensor is composed of Zn_(0.97)Ce_(0.03)S gas sensitive film,simple gas chamber,micro optical fiber spectrometer and supporting software was built to detect H_2S gas.The experimental results confirm that the H_2S gas sensor has the characteristics of good stability and strong anti-interference ability.By using the Stern-Volmer equation of fluorescence quenching principle,it was found that the measured H_2S gas concentration had a linear relationship with the fluorescence quenching signal of the sensitive element.The sensor has a fast response and can be used to detect with high sensitivity of the low concentration H_2S gas.
【Fund】: 国家自然科学基金(No.51574054);; 重庆市高校创新团队项目(No.CXTDX201601030);; 重庆市教委科学技术研究项目(No.KJ1709198)资助~~
【CateGory Index】: TP212
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