Description du projet
Les chalcogénures hybrides s’avèrent prometteurs pour l’optoélectronique de nouvelle génération
Les semi-conducteurs hautes performances et bon marché sont en passe de transformer la prochaine génération d’appareils optoélectroniques. Les pérovskites aux halogénures métalliques sont d’excellents candidats pour l’optoélectronique, mais leur déploiement a été freiné par des problèmes comme la robustesse et la compatibilité environnementale. Pour relever ces défis, le projet MIX2FIX, financé par l’UE, prévoit de développer une nouvelle classe de dispositifs optoélectroniques transformables en solution à base de chalcogénures organiques-inorganiques non toxiques et stables dans l’air. Le projet facilite la transition permettant de faire passer les matériaux optoélectroniques des pérovskites à base d’halogénures de plomb toxiques à des chalcogénures hybrides verts. Les travaux du projet auront des implications profondes pour le photovoltaïque, les écrans et les applications d’éclairage et même pour des applications au-delà de l’optoélectronique, comme les batteries et les supercondensateurs.
Objectif
The new generation of optoelectronics seeks for emerging semiconductors which combine high performance with low cost. Lead halide organic-inorganic perovskites manifest as excellent optoelectronic materials for this purpose, but at the expense of robustness and environmental compatibility. This presents a major challenge which this research addresses directly. Viable alternatives have to be identified. To tackle this challenge, MIX2FIX proposes to develop a new class of solution-processable optoelectronic devices based on air-stable, non-toxic metal chalcogenides endowed with an organic part, which will facilitate solution-processing and potentially enrich the compounds with the spectacular properties of halide perovskites. To achieve this, the CoG project has set the following objectives: (i) designing and developing optoelectronically-active, organic-inorganic chalcogenide thin films that have never been explored before, by mimicking strategies from established perovskite technology, (ii) devising means to improve their optoelectronic quality so as to be comparable with the best single-crystal semiconductors and (iii) implementing optimized materials into boundary-pushing PV and LED devices. Addressing these objectives will enable the development of novel functional hybrids at the boundaries of perovskite and chalcogenide thin films. With this, optoelectronics with efficiency and stability, comparable or higher than those of lead halide perovskite or chalcopyrite devices, will be demonstrated. This project will therefore permit the transition for emerging optoelectronic materials from toxic lead halide perovskites to green hybrid chalcogenides. Consolidating this unproven but disruptive technology will secure sustainable future for other areas of interest beyond photovoltaics, displays and lighting such as in X-Rays detectors and phototransistors or even beyond optoelectronics, in systems such as batteries and supercapacitors.
Champ scientifique
- natural sciencesphysical scienceselectromagnetism and electronicsoptoelectronics
- engineering and technologymaterials engineeringcoating and films
- natural sciencesphysical scienceselectromagnetism and electronicssemiconductivity
- engineering and technologyenvironmental engineeringenergy and fuelsrenewable energysolar energyphotovoltaic
Programme(s)
Régime de financement
ERC-COG - Consolidator GrantInstitution d’accueil
15341 Agia Paraskevi
Grèce