An impedance measurement technique based on dielectric excitation in oxide semiconductors can provide a highly linear sensing signal over a wide range of gas concentrations.
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Lee, JH. Linear gas sensing with dielectric excitation. Nat Electron 3, 239–240 (2020). https://doi.org/10.1038/s41928-020-0408-x
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DOI: https://doi.org/10.1038/s41928-020-0408-x
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