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

Figure 19

(a) SEM images of CuO/TiO₂ CT-8 (8.0% by weight of CuO in TiO₂) nanocomposites. (b) Resistance w.r.t. relative humidity. (c) Sensitivity w.r.t. relative humidity. (d) Hysterisis curve of CT-8 [85].

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