A QCM Humidity Sensor Based on MoS₂ Nanoflower-Modified Chitosan Composite With High Quality Factor
This article presented a quartz crystal microbalance (QCM) humidity sensor covered with chitosan/molybdenum disulfide (CS/MoS2) composite film. The prepared sensor possesses promising humidity sensing performance with high sensitivity [46.06 Hz/% relative humidity (RH)], short response/recovery time...
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Veröffentlicht in: | IEEE transactions on electron devices 2023-04, Vol.70 (4), p.1849-1853 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | This article presented a quartz crystal microbalance (QCM) humidity sensor covered with chitosan/molybdenum disulfide (CS/MoS2) composite film. The prepared sensor possesses promising humidity sensing performance with high sensitivity [46.06 Hz/% relative humidity (RH)], short response/recovery time (15/3 s), and small humidity hysteresis (2.5% RH). Most notably, the MoS2 nanoflowers that play a supporting role in the CS/MoS2 composite significantly reduce the swelling effect of CS in humid environments, enabling the CS/MoS2-based QCM humidity sensor to maintain a high {Q} -factor even under high humidity conditions, thereby considerably improving the stability of the sensor. |
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ISSN: | 0018-9383 1557-9646 |
DOI: | 10.1109/TED.2022.3231810 |