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Etude sur la modélisation de la couche active et la dissipation thermique dans les électrodes d’une cellule solaire organique

Abstract : This work concerns organic solar cells and it focuses on several aspects of the design of the device that are related to the sizing. The core of this study highlights the relation between the shape of an organic solar cell and the thermal dissipation inside the electrodes. The main contribution to this power loss comes from the transparent back electrode, since its conductivity is typically lower than those of the top electrode. In parallel we developed a non-linear model for the active layer in order to simulate the behavior of the solar cells in several particular illumination cases (such as spotlights, shadows and defects in the active layer) and different working regime. In the framework of PHASME project, a grant in collaboration with Disasolar and CEA-INES, we developed another piece of software closer to the CAD domain which the main function was to create a photovoltaic polychrome module starting from a substrate with given shape and size. We found two strategies. One consists in filling by the same solar cell shape and size the entire substrate and then in finding a suitable grouping in order to have the correct working point outside the device (matrix approach). The other one (non-matrix approach) consists in adapting the shape of the device to a given colored region, each individual cell keeping the same surface extension, which allows them to be connected in series since they all generate the same amount of current.
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Claudio Cristoferi. Etude sur la modélisation de la couche active et la dissipation thermique dans les électrodes d’une cellule solaire organique. Micro et nanotechnologies/Microélectronique. Université de Limoges, 2016. Français. ⟨NNT : 2016LIMO0030⟩. ⟨tel-02003334⟩

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