Gas and smoke sensors have also benefited greatly from the recent advances in nanotechnology. This chapter introduces a carbon monoxide (CO) gas detector that uses gold nanoparticles deposited on an array of carbon nanotubes as a sensing element, in addition to a smoke detector that achieves miniaturization by replacing a bulky alpha particle detection chamber with a silicon nanostructure. These types of detectors will be available commercially within a time span of 1 to 2 years.
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Title
Gas and Smoke Sensors
Publication Details
Micro- and Nano-Scale Sensors and Transducers, pp.74-99