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Printeltech LLC has succesfullty accomplished Skolkovo research project "Gas sensors based on printed electronics". As the main achievements of the research, the company demonstated the sensor technology based on organic field-effect transistors and the gas analyzer prototype PGA-100, illustrating the capabilities of the technology.

The heart of the new technology is a monolayer organic field-effect transistor (OFETs), which demonstrates excellent sensitivity to the variety of toxic gases such as ammonia or hydrogen sulphide with a detection limit to 30 ppb. The ultimate sensitivity is achieved by the ultrathin organic semiconductor layer, which acts as both the receptor and charge transporting layer. The selectivity of the sensor is ensured by applying the AC-signal on the gate electrode of the transistor.

Another result achieved withing the project is a "electronic nose" device based on OFETs with additional metal-containing porphyrin layer. Combining several porphyrin-layer containing devices into the array and analyzing the response of the sensor array with machine-learning techniques allowed effectively distinguish between several toxic gases. Printeltech LLC continues the development of the "electronic nose" device to meet the requiremets of practical applications.

At the final stage of the project together with (CIP MSU) Prineltech has developed the gas analyzer prototype PGA-100, illustrating the capabilities of the company's sensor technology. The collaboration with inductrial partnes in the context of technology commercialization is in progress.

This work was supported by Skolkovo Fund (project # № Г70/16).