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@ARTICLE{Staub:874013,
      author       = {Staub, Florian and Anusca, Irina and Lupascu, Doru C and
                      Rau, Uwe and Kirchartz, Thomas},
      title        = {{E}ffect of reabsorption and photon recycling on
                      photoluminescence spectra and transients in lead-halide
                      perovskite crystals},
      journal      = {JPhys materials},
      volume       = {3},
      number       = {2},
      issn         = {2515-7639},
      address      = {Bristol},
      publisher    = {IOP Publishing},
      reportid     = {FZJ-2020-01173},
      pages        = {025003 -},
      year         = {2020},
      abstract     = {Explaining the time-dependent evolution of
                      photoluminescence spectra of halide perovskite single
                      crystals after pulsed excitation requires the consideration
                      of a range of physical mechanisms, including electronic
                      transport, recombination and reabsorption. The latter
                      process of reabsorption and re-generation of electron-hole
                      pairs from a photon created by radiative recombination in
                      the single crystal itself is termed photon recycling and has
                      been a highly controversial topic. We use photoluminescence
                      experiments performed under different illumination
                      conditions combined with numerical simulations that consider
                      photon recycling to show which parameters affect temporal
                      decays, spectral shifts and differences in the illumination
                      direction. In addition, we use numerical simulations with
                      and without photon recycling to understand the relative
                      importance of charge-carrier transport and photon recycling.
                      We conclude that under most relevant illumination conditions
                      and times after the pulse, electronic transport is more
                      important than photon recycling for the spectral behavior of
                      the transients. However, inclusion of photon recycling is
                      imperative for the understanding of the absolute density of
                      electrons and holes present in the crystal during a certain
                      time after the pulse.},
      cin          = {IEK-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-5-20101013},
      pnm          = {121 - Solar cells of the next generation (POF3-121)},
      pid          = {G:(DE-HGF)POF3-121},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000560433000003},
      doi          = {10.1088/2515-7639/ab6fd0},
      url          = {https://juser.fz-juelich.de/record/874013},
}