Research Progress on Humidity-Sensing Properties of Cu-Based Humidity Sensors: A Review

Figure 15

(a) SEM image of CuO/PANI. (b) CuO/PANI impedance as a function of humidity; the inset shows the variation trend of pure PANI impedance as a function of humidity. (c) Schematic illustration of sensing mechanism over CuO/PANI nanocomposite. (d) Change in resistance of CuO/PANI nanocomposite with time at 60%RH. (e) Percentage sensing response of CuO/PANI at different relative humidity [78].

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