Fig. 10From: Ag Nanoparticles Sensitized In2O3 Nanograin for the Ultrasensitive HCHO Detection at Room Temperaturea, b Real-time response–recovery characteristic curve of the 5%Ag-In2O3 toward formaldehyde at different concentrations (1, 0.8, 0.6, 0.4, 0.2, 0.1, 0.08, 0.05 ppm) at 30 °CBack to article page