| abstract |
The invention relates to the field of measuring equipment, and more particularly to gas analysis sensors/chemical sensors designed to analyze the composition of gas mixtures and to detect and quantify toxic chemical gas compounds in an environment. A gas multisensor includes an array of N organic field-effect transistors, each of which comprises at least a source electrode and a drain electrode separated by an organic semiconductor layer, a gate electrode, a dielectric layer, and an additional receptor layer based on a metalloporphyrin of general formula 1 or 2 and completely or partially covering the organic semiconductor layer in the structure of the Nth organic field-effect transistor, where a metal ion of a porphyrin M is a transition metal, and each of the N organic field-effect transistors contained in the array differs from the other organic field-effect transistors in the array by the chemical structure of the receptor layer. The technical result is a lowering of the lower detection threshold of an electronic nose-type device based on chemisorbent sensors. |