Optical fiber hydrogen sensor based on evaporated Pt/WO3 film

Li, Zhi; Yang, Minghong; Dai, Jixiang; Wang, Gaopeng; Huang, Chujia; Tang, Jianguan; Hu, Wenbin; Song, Han; Huang, Pengcheng

doi:10.1016/j.snb.2014.09.093

Cited by 47 publications

(15 citation statements)

References 26 publications

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“…As shown in Fig. 4(d), the hydrogen sensor shows a non-linear hydrogen response, which is similar to the reported work [8,25]. Error bars of different hydrogen concentrations illustrate the fluctuations of I 1 /I 2 during the hydrogen testing process.…”

Section: Resultssupporting

confidence: 86%

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Improved performance of fiber optic hydrogen sensor based on WO3-Pd2Pt-Pt composite film and self-referenced demodulation method

Dai

Peng

Wang

et al. 2017

Sensors and Actuators B: Chemical

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Section: Resultssupporting

confidence: 86%

“…In our previous work, the hydrogen performance of WO 3 /Pt thin films was investigated with dual-path method [25]. Although the film shows good hydrogen responsibility, the hydrogen sensor still suffers from the intensity fluctuation of optical system.…”

Section: Introductionmentioning

confidence: 99%

Improved performance of fiber optic hydrogen sensor based on WO3-Pd2Pt-Pt composite film and self-referenced demodulation method

Dai

Peng

Wang

et al. 2017

Sensors and Actuators B: Chemical

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“…However, just like the evanescent hydrogen sensor, the potential problems of the essential intensity detection method are also existed in micro-mirror sensors. To eliminate the interferences, dual-path compensation [30,31] and single-path self-compensation [33,34] technologies are developed.…”

Section: Micro-mirror Sensormentioning

confidence: 99%

Recent advancements in optical fiber hydrogen sensors

Zhang

Peng

Qian

et al. 2017

Sensors and Actuators B: Chemical

176

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A review for optical fiber hydrogen sensors based on palladium (Pd) and tungsten oxide (WO 3) thin films is presented, with specific focus on the measurement methods, probe structures, and sensing properties of different sensors. Firstly, the theoretical models behind the optical fiber hydrogen sensors, as well as their practical limitations, are addressed. Secondly, four mainstream measurement methods, including intensity, fiber Bragg grating (FBG), interferometer, surface plasmon resonance (SPR), which have been proposed to sense the physicochemical properties variations of sensitive thin films when exposed to hydrogen, are reviewed. Then, the advantages and disadvantages of all the above measurement methods are also discussed and compared. Finally, the existing problems and future prospects of optical fiber hydrogen sensors are pointed out.

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“…Tungsten trioxide (WO3) is a very promising metal oxide with diverse properties. It has an n-type (Eg = 2.60-3.25 eV) [19,20] semiconducting nature and unique electrical properties. Further, it is transparent to visible and infrared light.…”

Section: Wo3 and Its Crystal Structurementioning

confidence: 99%

Gasochromic WO3 Nanostructures for the Detection of Hydrogen Gas: An Overview

Mirzaei

Kim

et al. 2019

Applied Sciences

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Hydrogen is one of the most important gases that can potentially replace fossil fuels in the future. Nevertheless, it is highly explosive, and its leakage should be detected by reliable gas sensors for safe operation during storage and usage. Most hydrogen gas sensors operate at high temperatures, which introduces the risk of hydrogen explosion. Gasochromic WO3 sensors work based on changes in their optical properties and color variation when exposed to hydrogen gas. They can work at low or room temperatures and, therefore, are good candidates for the detection of hydrogen leakage with low risk of explosion. Once their morphology and chemical composition are carefully designed, they can be used for the realization of sensitive, selective, low-cost, and flexible hydrogen sensors. In this review, for the first time, we discuss different aspects of gasochromic WO3 gas sensor-based hydrogen detection. Pristine, heterojunction, and noble metal-decorated WO3 nanostructures are discussed for the detection of hydrogen gas in terms of changes in their optical properties or visible color. This review is expected to provide a good background for research work in the field of gas sensors.

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Optical fiber hydrogen sensor based on evaporated Pt/WO3 film

Cited by 47 publications

References 26 publications

Improved performance of fiber optic hydrogen sensor based on WO3-Pd2Pt-Pt composite film and self-referenced demodulation method

Improved performance of fiber optic hydrogen sensor based on WO3-Pd2Pt-Pt composite film and self-referenced demodulation method

Recent advancements in optical fiber hydrogen sensors

Gasochromic WO3 Nanostructures for the Detection of Hydrogen Gas: An Overview

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