Fiber-optic dual Fabry-Pérot interferometric carbon monoxide sensor with polyaniline/Co3O4/graphene oxide sensing membrane

作     者：Jin Peng Jie Liao Xiaozhan Yang Wenlin Feng Jin Peng;Jie Liao;Xiaozhan Yang;Wenlin Feng

作者机构：Department of Physics and EnergyChongqing University of TechnologyChongqing 400054China Chongqing Key Laboratory of Green Energy Materials Technology and SystemsChongqing 400054China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2020年第31卷第8期

页      面：2145-2149页

核心收录：

学科分类：080202[工学-机械电子工程] 08[工学] 0804[工学-仪器科学与技术] 0837[工学-安全科学与工程] 0703[理学-化学] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China(No.51574054) the University Innovation Team Building Program of Chongqing(No.CXTDX201601030) Scientific and Technological Research Program of Chongqing Municipal Education Commission(No.KJZD-M201901102) Chongqing Science and Technology Bureau(Nos.cstc2017shmsA20017,cstc2018jcyjAX0294,CSTCCXLJRC 201905) the Innovation Leader Project of Chongqing Science and Technology Bureau(No.CSTCCXLJRC201905) 

主　　题：Carbon monoxide Dual Fabry-Perot interferometer Gas sensor PANI/Co3O4/GO Sensing membrane 

摘      要：An optical fiber dual Fabry-Perot interferometric carbon monoxide gas sensor based on PANI/Co3 O4/GO(PCG)sensing membrane coated on the end face of the optical fiber is proposed and *** end face of photonic crystal fiber(PCF)without cut-off wavelength is fused with a single-mode fiber(SMF),and the other end face of the PCF is coated with PCG sensing *** collapsed layer formed during the air hole fusion of PCF is used as the first reflector,the interface between PCF and sensing membrane is used as the second reflector,and the interface between the sensing membrane and the air is used as the third reflector,thus the dual Fabry-Pe rot structure sensor is *** results show that the sensor has excellent sensitivity and selectivity to carbon *** the increasing concentration of carbon monoxide gas in the range of 0-60 ppm,the intensity of interference spectrum *** sensitivity of the sensor is 0.3473 dB m/ppm,and its linearity is *** response time and recovery time are 68 s and 106 s,*** sensor has the advantages of the compact size,low cost,high sensitivity,strong selectivity and simple *** is suitable for the sensing detection of low concentration carbon monoxide gas.