Fig. 7
From: The Sensing Properties of Single Y-Doped SnO2 Nanobelt Device to Acetone
The sensitivity curves of the Y-SnO2 NB (a). The histogram of the Y-SnO2 NB device corresponding to 100 ppm of different gases at 210 °C (b). The response of the Y-SnO2 NB sensor is further investigated as a function of acetone gas concentration at 210 °C (c). The response (recovery) time of the Y-SnO2 NB device (d). Fitting the curve of response versus acetone concentration in the range of 100–500 ppm (e)