Description du projet
De nouvelles cellules solaires à absorption et transmission réglables
Parmi les technologies photovoltaïques (PV) émergentes, les cellules solaires à pigment photosensible (DSSC) semblent une solution prometteuse, à la fois rentable, stable et qui permet une semi-transparence, caractéristique innovante intéressante. Mais la technologie doit être développée davantage. Les DSSC présentent un potentiel d’applications infini, à commencer par les bâtiments, les véhicules et l’électronique mobile. Le projet PISCO s’appuiera sur une proposition faite en 2017 par son scientifique principal pour combiner le photochromisme et les propriétés photovoltaïques afin de produire des cellules solaires capables de s’auto-ajuster, tant au niveau de l’absorption (en fonction des conditions météorologiques) qu’en matière de transmission optique. PISCO s’attachera à concevoir de nouveaux colorants photochromiques très stables, à les tester dans plusieurs dispositifs et à démontrer leur potentiel pour des applications commerciales. Ses technologies innovantes contribueront à accroître considérablement la part des sources d’énergie solaire dans la production énergétique européenne.
Objectif
Solar Solar energy is an unlimited renewable source of energy but its contribution to European energy production is still minor. It is therefore urgent to develop innovative photovoltaic (PV) technologies and products, and to implement them massively. Among emerging photovoltaics, Dye-Sensitized Solar Cells (DSSCs) are competitive in terms of efficiency, cost, and more importantly stability. They can be made semi-transparent which is an appealing feature for building or automobile integrated photovoltaics. But to be efficient, they have to harvest a maximum of photons from the sun, thus the best-performing DSSCs cannot show a good transparency which impedes their use as windows.
In 2017, I proposed a new concept to combine photochromism and photovoltaic, leading for the first time to efficient semi-transparent solar cells showing variable and self-adjustable optical transmission. These cells can simultaneously adapt their absorption depending on the weather conditions and produce electricity.
Starting from this result, PISCO will widely explore this exciting concept and provide a breakthrough in photovoltaics by developing a novel class of multifunctional solar cells that could be massively integrated in buildings, automotive, or mobile electronics.
The main objectives of PISCO are:
1) Design and synthesis of novel photochromic dyes with optimized optoelectronic properties and high stability.
2) Integration of these molecules in devices using methodologies to enable fundamental studies, to fully understand what factors are governing the photochromic behaviour, the generation of electrical power, and the interplay between them.
3) Inspired by the most relevant and recent concepts in the field, to develop robust and efficient photochromic solar cells and modules.
PISCO will provide the step change expected in photovoltaics, it will change our conceit of optical properties of solar cells by providing a ground-breaking technology with widen potential applications.
Champ scientifique
Programme(s)
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Régime de financement
ERC-ADG - Advanced GrantInstitution d’accueil
75015 PARIS 15
France