JOURNAL ARTICLE
Detection of Ammonia Using Shear Horizontal Surface Acoustic Wave Resonators
Abstract
A shear horizontal surface acoustic wave (SH-SAW) sensor coated with the polyaniline (PANI) film was investigated in this study. The frequency shift of the SH-SAW was measured for detecting ammonia. In addition, the temperature effect was discussed in order to find a suitable temperature of operation. The SH-SAW sensor in this study could immediately respond the concentration of ammonia gas and showed a linear response. This sensor presented a sensitivity of 0.21 ppm/ppm at 23degC.
Keywords:
Surface acoustic wave Resonator Surface acoustic wave sensor Materials science Ammonia Acoustics Shear (geology) Polyaniline Ammonia gas Sensitivity (control systems) Analytical Chemistry (journal) Optoelectronics Composite material Chemistry Polymer Electronic engineering Physics Engineering Environmental chemistry
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Topics
Conducting polymers and applications
Physical Sciences → Materials Science → Polymers and Plastics
Analytical Chemistry and Sensors
Physical Sciences → Chemical Engineering → Bioengineering
Advanced Sensor and Energy Harvesting Materials
Physical Sciences → Engineering → Biomedical Engineering
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