Ultra-High Sensitivity Humidity Sensor Based on MoS2/Ag Composite Films

Novel capacitance-type humidity sensors based on MoS 2 /Ag composite films with a simple preparation method were proposed. The sensing characteristics of sensors against relative humidity were investigated, and the test results demonstrated that the humidity sensitivity of the MoS 2 /Ag-based sensor...

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Veröffentlicht in:	IEEE electron device letters 2017-06, Vol.38 (6), p.806-809
Hauptverfasser:	Li, Ning, Chen, Xiang-Dong, Xin-Peng, Chen, Ding, Xing, Zhao, Xuan
Format:	Artikel
Sprache:	eng
Schlagworte:	Ag nanoparticles Capacitance Humidity humidity sensor Impedance spectroscopy Molybdenum Molybdenum disulfide MoS Relative humidity Sensitivity Sensors Sulfur ultra-high performance
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Beschreibung
Zusammenfassung:	Novel capacitance-type humidity sensors based on MoS 2 /Ag composite films with a simple preparation method were proposed. The sensing characteristics of sensors against relative humidity were investigated, and the test results demonstrated that the humidity sensitivity of the MoS 2 /Ag-based sensors was significantly Enhanced, which is ten times that of the pure MoS 2 -based humidity sensors. Meanwhile, this kind of sensors exhibited fast response speed capable of detecting the human breath. Furthermore, complex impedance spectroscopy was discussed to understand the sensing mechanisms of MoS 2 /Ag-based sensors.
ISSN:	0741-3106 1558-0563
DOI:	10.1109/LED.2017.2699332