A vapochromic dye/graphene coated long-period fiber grating for benzene vapor sensing

Dong, Lianghai; Zhao, Kangfei; Wu, Jieyun; Deng, Guowei; Tang, Chunlan; Zhang, Chun; Xu, Huajun; Wang, Qihui; Chen, Kaixin; Chiang, Kin Seng

doi:10.1039/d2qm00590e

Cited by 5 publications

(4 citation statements)

References 57 publications

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“…Graphene and its derivatives, as a two-dimensional material to be exfoliated, has been widely researched in the LPFGs sensing applications owing to its superior optical and optoelectronic properties [28][29][30]. In our trial, the humidity sensing capability of side-polished LPFG is achieved by applying a GO nano-film material coating [31].…”

Section: Humidity Sensing Performancementioning

confidence: 97%

Long-Period Fiber Grating Based on Side-Polished Optical Fiber and Its Sensing Application

Liu

et al. 2023

IEEE Trans. Instrum. Meas.

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A novel side-polished long-period fiber grating (LPFG) sensor was proposed and experimentally validated. Side-polished can provide a stronger evanescent field than traditional grating and bring superior sensitivity. The greater the side-polished depth, the higher the refractive index (RI) sensitivity. When d = 44 μm, the refractive index sensitivity reached 466.85 nm/RIU in the range of 1.3330 -1.3580, which is four-fold higher than LPFG prepared by electric-arc discharge (EAD) method. A graphene oxide (GO) nano-film is coated on the LPFG to make it realize high sensitivity relative humidity (RH) sensing. Humidity sensitivity reached -0.193 nm/%RH in the range of 40 -80% RH. In addition, sidepolished breaks the symmetry of the distribution of the crosssectional light field, which determines the ability to achieve vector curvature measurement. It shows good sensing performance in the same/opposite bending direction as the side polished surface. When the input light polarization is 90°, the average sensitivity reaches 5.03 and -5.9 nm/m -1 in the range of 0 -19.67 m -1 , respectively. This strongly indicates that the fabricated sensors show high sensitivity, low-cost materials, and robust performance and break the limitations of the EDA method to prepare gratings, which have good application potential for biomedicine and the field of construction.

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Section: Humidity Sensing Performancementioning

confidence: 97%

Long-Period Fiber Grating Based on Side-Polished Optical Fiber and Its Sensing Application

Liu

et al. 2023

IEEE Trans. Instrum. Meas.

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“…The structural features of CNTs (sp2 hybridization) create a conjugated system with the benzene ring’s off-domain π-electronic structure, leading to increased benzene adsorption. Dong et al 131 . designed and fabricated a long-period fiber grating sensor with graphene/IDTC1 as the sensitive fiber cladding for quantitative detection of benzene vapor.…”

Section: Air Quality Monitoringmentioning

confidence: 99%

“…(c) Graphene/IDTC1-modified long-period optical fiber grating benzene sensors. (d) Transmission spectra in the presence or absence of IDTC1 dye and in different gas atmospheres 131 …”

Section: Air Quality Monitoringmentioning

confidence: 99%

Optical fiber sensors for water and air quality monitoring: a review

Lyu,

Huang,

et al. 2023

Opt. Eng.

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Owing to their advantages of anti-electromagnetic interference, chemical resistance, high sensitivity, and fast response time, optical fiber sensors (OFSs) are widely used in biomedical, environmental monitoring, and food safety fields. We introduce the classification and principles of OFSs and summarize the applications and research progress of OFSs in water quality detection (heavy metals and microorganisms) and air quality monitoring (COx , NOx , and VOCs). Meanwhile, analytical performance, reliability, and environmental adaptability of OFSs are discussed and prospected.

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“…More recently, numerous researchers have developed organic fluorescence reagents equipped with mechanochromism and vapochromism. 13–29 Recently, we reported that N , N ′-dipyrid-3-yl-1,4,5,8-naphthalenediimide (NDI) linked to two tris(pentafluorophenyl)borane (TPFB) ( 1 ) and N , N ′-bis(2-aminobenzophenone)-1,4,5,8-naphthalenetetracarboxylic diimide ( 2 ) formed 2 : 1 and 1 : 1 complexes, respectively, with toluene as single crystals with fluorescence based on the charge transfer interaction (Fig. 1).…”

mentioning

confidence: 99%

Fluorescence sensor using porous host molecules deposited on filter paper with vapochromic and mechanochromic properties

et al. 2023

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A vapochromic dye/graphene coated long-period fiber grating for benzene vapor sensing

Abstract: The exploration of new materials and devices for the identification and detection of toxic and carcinogenic benzene vapor are considerably significant due to its severe toxicity and carcinogenicity for human...

Cited by 5 publications

References 57 publications

Long-Period Fiber Grating Based on Side-Polished Optical Fiber and Its Sensing Application

Long-Period Fiber Grating Based on Side-Polished Optical Fiber and Its Sensing Application

Optical fiber sensors for water and air quality monitoring: a review

Fluorescence sensor using porous host molecules deposited on filter paper with vapochromic and mechanochromic properties

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