Evaluate humidity sensing properties of novel TiO2-WO3 composite material

TiO2-WO3 (1:1) showed better humidity sensing properties than others within the range of 12-90% relative humidity (RH), the response and recovery time were about 20 s and 160 s, respectively. Compared to the previous studies, the prepared sensor exhibits higher sensitivity (S = 451) and the low hysteresis value was around 0.13% at 32% RH.