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Evanescent Wave Absorption Sensor Based Tapered Plastic Optical Fiber Coated with Monolayer Graphene for Ethanol Molecules Detection
Author(s) -
Jiang Shouzhen,
Qiu Hengwei,
Gao Saisai,
Chen Peixi,
Li Zhen,
Yu Kaiyang,
Yue Weiwei,
Yang Cheng,
Huo Yanyan,
Wang Shuyun
Publication year - 2016
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201600271
Subject(s) - graphene , monolayer , chemistry , absorbance , foil method , absorption (acoustics) , analyte , chemical vapor deposition , optoelectronics , graphene nanoribbons , optical fiber , fiber , analytical chemistry (journal) , nanotechnology , materials science , optics , composite material , chromatography , organic chemistry , biochemistry , physics
An evanescent wave absorption (EWA) sensor based tapered plastic optical fiber (TPOF) coated with monolayer graphene film for ethanol molecules detection is demonstrated in this study. The continuous and monolayer graphene films were grown on a Cu foil by using chemical vapor deposition (CVD) technology. Polymethyl methacrylate (PMMA) was used as the carrier to support the transfer of graphene from Cu foil to the skinless tapered optical fiber core. The accuracy of the TPOF sensor with graphene (G‐TPOF sensor) is much higher than that without graphene (TPOF sensor), which can be attributed to the molecules enriched on the surface of graphene. The absorbance ( A ) and the concentrations of ethanol solution show an excellent proportional relationship in a range of 0–100%. The dynamic response of the G‐TPOF sensor has shown strong reversibility, repeatability and stability at room temperature. The response time and recovery time of the G‐TPOF sensor for different concentrations are all less than 30 s. Beyond that, we selected the Chinese liquor as the analyte, and the results are consistent with the concentration‐list obtained in the experiment.