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The aim is to summarize recent advancements in sensor technologies for detecting hydrogen halide gases and understanding their mechanisms.

Hydrogen Halide Gas Sensors: Active Materials, Operation Principles, and Emerging Technologies

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The aim is to summarize recent advancements in sensor technologies for detecting hydrogen halide gases and understanding their mechanisms.
Review of four main sensor categories: acoustic, chemical, optical, and nanophotonic.
Discussion on operation principles of each sensor type.
Comparison of different sensing mechanisms and designs.
Acoustic sensors include microbalance‐based and surface acoustic wave techniques.
Chemical sensors utilize electrochemical and chemiresistive mechanisms.
Optical sensors cover methods like fluorescence, laser absorption, and photoacoustic spectroscopy.
Emerging nanophotonic sensors focus on plasmonic and all-dielectric approaches.

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Review highlights sensing technologies for hydrogen halides, indicating their significance for health safety.

Liu et al. (2026) studied this question.

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