PlumX Metrics
Embed PlumX Metrics

Electrical and humidity-sensing properties of impedance-type humidity sensors that were made of ag microwires/ppy/sno ternary composites

Chemosensors, ISSN: 2227-9040, Vol: 8, Issue: 4, Page: 1-14
2020
  • 14
    Citations
  • 0
    Usage
  • 17
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    14
    • Citation Indexes
      14
  • Captures
    17
  • Mentions
    1
    • Blog Mentions
      1
      • Blog
        1

Article Description

Impedance-type humidity sensors were fabricated via one-step UV-irradiation photopolymerization of Ag microwires (Ag MWs), polypyrrole (PPy) and SnO ternary composite (Ag MWs/PPy/SnO ) films on an alumina substrate. X-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) coupled with an energy dispersive X-ray (EDX) elemental mapping were used to analyze the morphology, structure, and composition of Ag MWs/PPy/SnO ternary composite films. Microstructural observations revealed that the Ag MWs were embedded, and PPy formed on the surface of the Ag MWs/PPy/SnO ternary composite film. The effects of the addition amounts of loading of Ag and PPy on the electrical and humidity-sensing properties of the Ag MWs/PPy/SnO ternary composite films were investigated. The impedance-type humidity sensor based on Ag MWs/PPy/SnO ternary composite film containing 6 mg of Ag and 0.1 g of PPy had the highest sensitivity and an acceptable linearity over the RH ranged from 10% to 90% RH, a low hysteresis, a fast response time, and long-term stability. This technique is useful for practical application because its fast and ease of fabrication. The ions (H O ) that dominate the impedance changed with relative humidity (RH) for the humidity sensor that based on Ag MWs/PPy/SnO ternary composite film was analyzed using complex impedance spectra.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know