Side polished fiber coated with molybdenum diselenide (MoSe2) for humidity sensing

Lang, Yuwei; Ouyang, Tenghui; Lin, Li-Min; Xia, Kai; Jiang, Mengjiang; Guan, Heyuan; Yu, Jianhui; Li, Dongquan; Chen, Guanglei; Zhong, Yi; Tang, Jieyuan; Dong, Jiangli; Lu, Huihui; Luo, Yunhan; Zhang, Jun; Chen, Zhe

doi:10.1364/sensors.2017.sew1e.2

Cited by 2 publications

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“…The Raman spectrum in Fig. 2d exhibits two peaks in 240 (cm −1 ) and 290 (cm −1 ) approximately that correspond to off-plane links (A 1g ) and intramolecular links (E 2g ) respectively 31,34 .…”

Section: Synthesismentioning

confidence: 99%

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2D materials coated on etched optical fibers as humidity sensor

Owji

Mokhtari

Ostovari

et al. 2021

Sci Rep

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In this investigation, etched-fibers are coated by 2D layers such as Molybdenum disulfide (MoS2), Molybdenum diselenide (MoSe2) and composition of graphene and graphene oxide (G/GO) to modify humidity sensing. The relative differentiation of attenuations (RDA) in presence of relative humidity (RH) is measured by Optical Loss Test Set at two standard-wavelengths-telecommunication (1310 nm and 1550 nm). Results show that the etched single-mode fiber (ESMF) coated with G/GO has relatively high and one by one function for RDA versus RH (more than 30%). Also, its sensitivity and variance are reasonable. The MoSe2 based sensor is applicable at humidity below 30% because of higher RDA. However, it is not useful at humidity more than 30% due to the absence of one by one function for RDA versus RH. Besides, ESMF coated with MoS2 has indistinctive behavior and is not useful as a humidity sensor.

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Section: Synthesismentioning

confidence: 99%

“…www.nature.com/scientificreports/ atoms respectively. The humidity sensor based on the side-polished optical fiber coated with these nanosheets have been investigated at 1550 nm wavelength [33][34][35] . The use of mechanical polishing method results in insertion loss of the side-polished fiber and smoothness of edges is difficult.…”

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confidence: 99%

2D materials coated on etched optical fibers as humidity sensor

Owji

Mokhtari

Ostovari

et al. 2021

Sci Rep

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show abstract

Tin Disulfide-Coated Microfiber for Humidity Sensing with Fast Response and High Sensitivity

et al. 2021

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Breath monitoring is significant in assessing human body conditions, such as cardiac and pulmonary symptoms. Optical fiber-based sensors have attracted much attention since they are immune to electromagnetic radiation, thus are safe for patients. Here, a microfiber (MF) humidity sensor is fabricated by coating tin disulfide (SnS2) nanosheets onto the surface of MF. The small diameter (~8 μm) and the long length (~5 mm) of the MF promise strong interaction between guiding light and SnS2. Thus, a small variation in the relative humidity (RH) will lead to a large change in optical transmitted power. A high RH sensitivity of 0.57 dB/%RH is therefore achieved. The response and recovery times are estimated to be 0.08 and 0.28 s, respectively. The high sensitivity and fast response speed enable our SnS2-MF sensor to monitor human breath in real time.

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Side polished fiber coated with molybdenum diselenide (MoSe2) for humidity sensing

Cited by 2 publications

References 2 publications

2D materials coated on etched optical fibers as humidity sensor

2D materials coated on etched optical fibers as humidity sensor

Tin Disulfide-Coated Microfiber for Humidity Sensing with Fast Response and High Sensitivity

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