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- W2912747569 abstract "This work proposes a surface acoustic wave (SAW) hydrogen sensor based on the decoration of graphene oxide (GO) by palladium nanoparticles on AIN/Si layered structure. A thin decoration of GO by palladium nanoparticles layer is directly coated on the sensor surface as sensing layer. The SAW hydrogen sensor shows higher sensitivity (~9.5 times) and lower cross-sensitivity towards NO2 compared to those based on GO only. The hydrogen sensor has good stability and fast response. The response time and recovery time are both 7 s. The frequency shift of the sensor with hydrogen concentration change is described by a fitting formula. Response mechanism is investigated based on complex impedance spectroscopy at various hydrogen concentration levels." @default.
- W2912747569 created "2019-02-21" @default.
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- W2912747569 date "2019-02-27" @default.
- W2912747569 modified "2023-09-27" @default.
- W2912747569 title "A SAW hydrogen sensor based on decoration of graphene oxide by palladium nanoparticles on AIN/Si layered structure" @default.
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- W2912747569 doi "https://doi.org/10.1088/1361-6439/ab061b" @default.
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