Nanoplasmonic Guided Optic Hydrogen Sensor

Javahiraly, Nicolas; Perrotton, Cédric

doi:10.1002/9783527699940.ch19

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2021

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“…Compared to conventional ways of detecting hydrogen such as catalytic resistor detectors and electrochemical devices, optical fiber hydrogen sensors are inherently safe and can be made small and inexpensive. [ 8,9,11–18 ]…”

Section: Introductionmentioning

confidence: 99%

Tantalum‐Palladium: Hysteresis‐Free Optical Hydrogen Sensor Over 7 Orders of Magnitude in Pressure with Sub‐Second Response

Bannenberg

Schreuders

Dam

2021

Adv Funct Materials

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Hydrogen detection in a reliable, fast, and cost‐effective manner is a prerequisite for the large‐scale implementation of hydrogen in a green economy. Thin film Ta1−yPdy is presented as an effective optical sensing material with extremely wide sensing ranges covering at least 7 orders of magnitude in hydrogen pressure. Nanoconfinement of the Ta1−yPdy layer suppresses the first‐order phase transitions present in bulk and ensures a sensing response free of any hysteresis. Unlike other sensing materials, Ta1−yPdy features the special property that the sensing range can be easily tuned by varying the Pd concentration without a reduction of the sensitivity of the sensing material. Combined with a suitable capping layer, sub‐second response times can be achieved even at room temperature, faster than any other known thin‐film hydrogen sensor.

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Section: Introductionmentioning

confidence: 99%