Proceedings of nanoGe Fall Meeting 2021 (NFM21)
DOI: https://doi.org/10.29363/nanoge.nfm.2021.250
Publication date: 23rd September 2021
New results on the interplay between structural and optoelectronic properties of multilayered perovskites
The presentation will give an insight into the interplay between structural and optoelectronic properties in 2D multilayered halide perovskites, either in Ruddlesden Popper or Dion Jacobson structure. The results will particularly describe specific mechanisms for the interaction of hot carriers with a 2D lattice, including a discussion on the electron-phonon coupling in layered perovskites and a comparison with previous results on 3D perovskites. Moreover the funneling of electronic carriers to the 2D crystal edges, important for ionization of electron-hole pairs in 2D perovskite solar cells, is shown to be generalized as well to bromide materials. It is including a relaxation of collective polar ordering observed in the bulk at room temperature. Finally the impact of light soaking on the lattice relaxation and carrier trapping, is shown to have a strong influence on carrier transport in operating devices and performances of photovoltaic devices.
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