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Theses

Hybrid Perovskites : Fundamental properties and solar cell thin film technology

Abstract : In the future, the world has to face up to major challenges: increasing the energy production, reducing the environmental impact, moving towards sustainability in energy, etc. Renewable energies such as photovoltaics can meet these challenges. This thesis concerns hybrid halide perovskite materials and their use in solar cells. These materials have recently attracted a lot of attention owing to their direct bandgaps, strong light absorption, large carrier diffusion lengths, tunable optoelectronic properties, and their facile and low-cost fabrication In few years, their energy conversion efficiency has rapidly increased from 3.8 % in 2009 to 22.7 % in 2017, hence approaching efficiencies of crystalline silicon based-devices which represent 90% of commercial photovoltaic cells. In the design of perovskite cells, the perovskite photoabsorber is generally sandwiched by two interfacial layers that yield selective charge collections: the hole and electron transport layers (HTM and ETM). Good quality and adapted interfacial layers are required to obtained high efficiency cells. In this thesis, both the perovskite material and the interfacial layers are investigated.
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  • HAL Id : tel-02918129, version 1

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Daniel Sapori. Hybrid Perovskites : Fundamental properties and solar cell thin film technology. Electric power. INSA de Rennes, 2018. English. ⟨NNT : 2018ISAR0017⟩. ⟨tel-02918129⟩

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