About Us
We’re a group of creative thinkers who have built a business to change the world.

A combination of low limit of detection, low power consumption, and portability makes OFETs  chemical sensors promising for various applications in the areas of industrial safety control, food spoilage detection, and medical diagnostics.

Our sensors are able to operate in air and allow an ultrafast detection of different analytes at low concentrations down to tens of parts per billion. The sensors are reusable and can be utilized in real-time air-quality monitoring systems. We show that a direct current response of the LS OFET can be split into the alteration of various transistor parameters, responsible for the interactions with different toxic gases.

What we are best at

Sensor technology

1. Sensor fabrication
Our solution is based on the semiconductors synthesized in our group which self assemble on the substrate in monomolecular layers.
To induce selectivity to target gases we are covering our sensors with receptor layers based on metalloporphyrins with different metal atoms in the center.
2. Working principal
>Charge injection into channel
>Gas physisorption
>Charge trapping
Absorption of polar molecules on the surface changes local field distribution and trap charges, thus can be registered by changes in the transistor current.
3. Recovery
device can operate//
to dissorb molecular//
working intervals - temp, humidity, pressure

Publications

Highly Sensitive Air-Stable Easily Processable Gas Sensors Based on Langmuir–Schaefer Monolayer Organic Field-Effect Transistors for Multiparametric H2S and NH3 Real-Time Detection
A.S. Sizov, A.A. Trul, V.P. Chekusova, O.V. Borshchev, A.A. Vasiliev, E.V. Agina, S.A. Ponomarenko
ACS Appl. Mater. Interfaces, 2018, 10 (50), 43831–43841; DOI: 10.1021/acsami.8b15427

Organosilicon dimer of BTBT as a perspective semiconductor material for toxic gas detection with monolayer organic field-effect transistors
A.A. Trul, A.S. Sizov, V.P. Chekusova, O.V. Borshchev, E.V. Agina, M.A. Shcherbina, A.V. Bakirov, S.N. Chvalun, S.A. Ponomarenko
Journal of Materials Chemistry C, 2018, 6, 9649-9659; DOI: 10.1039/C8TC02447B

Synthesis of organosilicon derivatives of [1]benzothieno[3,2-b][1]-benzothiophene for efficient monolayer Langmuir–Blodgett organic field effect transistors
O.V. Borshchev, A.S. Sizov, E.V. Agina, A.A. Bessonov and S.A. Ponomarenko
Chem. Commun., 2017, 53, 885-888; DOI: 10.1039/C6CC08654C

Direct-write printing of reactive oligomeric alkoxysilanes as an affordable and highly efficient route for promoting local adhesion of silver inks on polymer substrates
M.N. Kirikova, E.V. Agina, A.A. Bessonov, A.S. Sizov, O.V. Borshchev, A.A. Trul, A.M. Muzafarov, S.A. Ponomarenko
Journal of Materials Chemistry C, 2016, 4, 2211-2218; DOI:  10.1039/C5TC03497C

Thiophene-based monolayer OFETs prepared by Langmuir techniques
E.V. Agina, A.S. Sizov, D.S. Anisimov, A.A. Trul, O.V. Borshchev, D.Y. Paraschuk, M.A. Shcherbina, S.N. Chvalun, S.A. Ponomarenko
Proceedings of SPIE, 2015, Vol. 9568, 95680Z; DOI:  10.1117/12.2188338

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