Semiconducting metal oxides such as tin oxide (SnO2), titanium dioxide (TiO2) and zinc oxide (ZnO) are routinely used as active materials in solid state gas sensing devices.

• 半导体型的金属氧化物，如氧化锡（SnO2）、氧化钛（TiO2）和氧化锌（ZnO），经常作为活性材料用在固态气体传感器件中。