Ionization of gas sensors based on carbon nanotubes

摘要

Task alleged utility model - increasing the electric field in the air gap between the anode and the cathode, energy efficiency, increase temperaturostoyskosti sensor performance and improved stability. Technical result is achieved by: decreasing the air gap, which allows to increase the field strength, lower operating voltages and to increase the energy efficiency of operation of the sensor; applying the inorganic material to provide insulation between the anode and the cathode, can withstand elevated temperatures as compared with an inorganic material; using an array of carbon nanotubes as an anode and as a consequence, increase the stability of sensor operation and to reduce the rate of degradation of carbon nanotubes by reducing the contribution of electrons injected from the carbon nanotubes during the detection current. The positive economic effect is to increase the energy efficiency of the device operation due to reduction of the operating voltage with decreasing gap between the anode and the cathode, and as a consequence, increasing the electric field near the tops of carbon nanotubes, the expansion temperature range of the sensor operation, by applying an inorganic insulator material, and increasing the stability of operation of the sensor array using carbon nanotubes as an anode, by reducing the electron charge contribution inzhek ted from the tops of carbon nanotubes, a detectable current.