Synthesis and Ethanol Sensing Properties of Novel Hierarchical Sn₃O₄ Nanoflowers

Figure 6

Gas sensitive response of as-prepared samples; (a) sensitivity variation in response with operating temperature; (b) the sensor response curve of gas sensor; (c) typical transient response curves of the sensors; and (d) dynamic sensing transient of the sensor to 100 ppm for ethanol.

(a)

(b)

(c)

(d)