An oxygen sensitive YSZ-Gate MOSFET is new type oxygen sensor
The sensor is fabricated by depositing a thin layer of YSZ(Yttria-Stabilized Zirconia)on a gate insulator of FET.The response mechanism of the sensor is introduced and the influence of crystal structure of YSZ solid electrolyte on its electrical conductivity is discussed.The results of microanalysis and the rapid response with time are also given.