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Tan Nguyen, Claudine Katan, Jacky Even

The 6th Journées Perovskites Halogénées 2021 (JPH2021)

In the context of rising popularity of perovskites as the potential candidate for many future photovoltaic and lighting applications, the Journées Pérovskites Halogénées 2021 (JPH2021) gathered researchers working on these exciting materials across France. Chemists, physicists and engineers from many experimental and theory groups discussed the diverse and multidisciplinary aspects of the field including synthesis, structural and optical characterization of thin films and nanostructures (0D, 1D, 2D and 3D), etc. These are of crucial importance for the applications in photovoltaics, light detection and LED, thermoelectricity and many more. Three intense sessions were dedicated to the following exciting themes: Synthesis and fundamental properties, Characterization of materials and modelling, Devices and industrial aspects. Interested viewers can find more details from the conference website at https://jph2021.sciencesconf.org. Our current theoretical work under the workpackage WP2 of the European POLLOC project is devoted to the electronic and optical properties of the nanocrystal systems of single exciton and beyond. The contributed talk, which was given during the session “Characterization of materials and modelling” of JPH2021, focuses on the correlation origin of the exciton fine-structure as well as the biexciton/trion emission using many-body perturbation theory as well as the configuration interaction approach. This project was funded by the European Union’s Horizon 2020 program, through a FET Open research and innovation action under the grant agreement No 899141 (PoLLoC).

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