Funding (ICMUB): 177 155 €
Duration: may 2022 – 36 months
Scientific leader: Marcel BOUVET (coordinator)
Summary
In the field of chemical sensors, organic materials are still little used compared to inorganic materials. Furthermore, the major problem with commercial sensors remains their lack of selectivity. We approached this problem of optimizing pollutant gas sensors in three ways: i) the modulation of the transport properties of original electronic devices, patented by the coordinator of this project, thanks to the electrografting of polar molecules capable of modifying the properties of the electrodes, ii) the use of new polymer materials synthesized in the UTINAM institute, but with covalent anchoring on the surface, the interest of which we have demonstrated for better adhesion of materials; iii) the study of the effect of an external luminous trigger (or stimulus), allowing the sensors to operate in two different states, and this with ambipolar materials. These devices are the preceding heterojunctions and the lateral heterojunctions. All these gas sensors have been studied in a real atmosphere, in particular in a wide range of humidity, to be as close as possible to real applications in the fields of air quality control and monitoring of processes in which the atmosphere plays a role, in particular in the agri-food sector.
Total Funding: 332 404 €
Partners:
- Lydie Viau (UTINAM, UFC)