TRACE AMMONIA SENSOR Russian patent published in 2022 - IPC G01N27/12 

FIELD: gas analysis.

SUBSTANCE: invention relates to the field of gas analysis, in particular to detection devices used to register and measure the content of trace ammonia. The ammonia microimpurity sensor contains a semiconductor base and a substrate, while the semiconductor base is made of a polycrystalline film of a solid solution of composition (CdS)_0.67(CdTe)_0.33 deposited on a substrate made in the form of an electrode pad of a piezoelectric resonator.

EFFECT: increasing the sensitivity and manufacturability of the sensor.

1 cl, 3 dwg