Description du sujet de thèse

Converting solar radiation and abundant small molecules such as water and carbon dioxide into fuels is essential if we are to meet the challenge of the energy transition. This is what artificial photosynthesis is all about. There are still many challenges, and we will be addressing 2 key points: improving light harvesting and charge management in these systems to increase conversion yields.
As part of a national project, photosystems will be developed to operate in heterogeneous conditions, around the Bodipy-polyoxometalate photosystems. Using time-resolved spectroscopy, we will study the role of the different architectures for light capture and separation of multiple charges. The photoaccumulation of charges is necessary to activate the catalytic centre and is one of the key issues. Following systematic studies in solution, charges photoaccumulation will be studied on systems made of photoelectrodes grafted with Bodipy-POM.

Contexte de travail

The research team is locate dat ISMO. We develop an ensemble of dedicated methods and experimental setup to study the photophysics of molecular systems for artificial photosynthesis. In particular we use ultrafast time-resolved spectroscopies.

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.

Contraintes et risques

Experimental work using mostly class IV laser