Posters du Séminaire PEPR TASE 2024
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National audience
National audience
Cu(In,Ga)S2 (CIGS) thin films are relevant candidates when combined with crystalline Si in tandem solar cells. Indeed, with an appropriate composition, the bandgap of CIGS can be tuned to 1.7eV. However, a significant technological challenge is the lack of adhesion when CIGS is directly deposited on Si. To address this issue, we propose the additio...
La microscopie à sonde de Kelvin (KPFM) et la technique AFM à pointe conductrice (c-AFM) ont été étudiées pour la caractérisation des matériaux et des dispositifs photovoltaïques, en accordant une attention particulière aux analyses en coupe transversale. Dans cette thèse, nous présentons les résultats obtenus sur diverses structures développées à ...
The current energy crisis has revealed deep vulnerabilities in energy supplies. It also emphasised the strong fossil fuel dependency of many countries. Some governments decided to tighten their energy policies, particularly on energy efficiency and the use of intermittent and renewable energies. Photovoltaic energy has the advantage of emitting few ...
Methyl Ammonium Lead Iodide or in short, MAPbI₃ has emerged as a promising frontier in the realm of next-generation photovoltaic devices. This is because of its remarkable efficiency levels exceeding 22% and facile fabrication processes. Nonetheless, the pursuit of enhanced performance, stability, and the prevention of material degradation during o...
Décryptage du nouveau statut légal de l'agrivoltaïsme, entre la lumière de la consécration et des zones d'ombre persistantes.
The amount of variable renewable energy sources (vRES) integrated to the electrical grid has continued to increase to reduce greenhouse gas emissions. Because of their intermittent nature, new obstacles arise when ensuring the stability of the grid. High-capacity li-ion battery energy storage systems (LiBESS) have seen a surge in adoption to allevi...
International audience
Perovskite solar cells have attracted a lot of attention in the past years, due to high power conversion efficiencies and low cost of fabrication. Material and interface properties in these devices have been intensely studied, allowing to significantly improve performances. However, the expected lifetime remain short, because of numerous potential ...
Dans une optique de conception de bâtiments à énergie positive, une couverture totale des besoins en énergie est possible grâce à l'énergie solaire. Ces bâtiments doivent aussi permettre une gestion complète du confort intérieur et offrir une esthétique réussie conforme aux exigences des architectes. Ces trois points demandent une intégration optim...