光子学报, 2018, 47 (10): 1028001, 网络出版: 2018-12-18
基于ZnCeS的荧光猝灭型硫化氢气体传感器
Optical Hydrogen Sulfide Gas Sensor Based on the Fluorescence Quenching of ZnCeS
高温固相法 气敏材料 光纤传感 High temperature solid phase method Gas sensitive material Optical fiber sensing H2S H2S Zn0.97Ce0.03S Zn0.97Ce0.03S
摘要
采用高温固相法制备了Zn0.97Ce0.03S光学气敏材料, 搭建了一套由Zn0.97Ce0.03S气敏薄膜、简易气室、光纤光谱仪及配套软件构成的气体传感器用以检测H2S气体.实验结果表明:该H2S气体传感器的检测限为4.28 ppm, 稳定性好、灵敏度高、抗干扰能力强.采用荧光猝灭的Stern-Volmer方程分析发现, H2S气体浓度与敏感元件荧光猝灭信号呈良好的线性对应关系, 且整个传感器制作简单、响应迅速, 可实现对低浓度H2S气体的高灵敏检测.
Abstract
Zn0.97Ce0.03S optical gas sensing material was successfully prepared by high temperature solid phase method. A gas sensor is composed of Zn0.97Ce0.03S gas sensitive film, simple gas chamber, micro optical fiber spectrometer and supporting software was built to detect H2S gas. The experimental results confirm that the H2S 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 H2S 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 H2S gas.
杨晓占, 雷勇, 肖虎, 冯文林. 基于ZnCeS的荧光猝灭型硫化氢气体传感器[J]. 光子学报, 2018, 47(10): 1028001. YANG Xiao-zhan, LEI Yong, XIAO Hu, FENG Wen-lin. Optical Hydrogen Sulfide Gas Sensor Based on the Fluorescence Quenching of ZnCeS[J]. ACTA PHOTONICA SINICA, 2018, 47(10): 1028001.