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@ARTICLE{Krckemeier:890727,
      author       = {Krückemeier, Lisa and Krogmeier, Benedikt and Liu, Zhifa
                      and Rau, Uwe and Kirchartz, Thomas},
      title        = {{U}nderstanding {T}ransient {P}hotoluminescence in {H}alide
                      {P}erovskite {L}ayer {S}tacks and {S}olar {C}ells},
      journal      = {Advanced energy materials},
      volume       = {11},
      number       = {19},
      issn         = {1614-6832},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2021-01150},
      pages        = {202003489},
      year         = {2021},
      abstract     = {While transient photoluminescence (TPL) measurements are a
                      very popular tool to monitor the charge-carrier dynamics in
                      the field of halide perovskite photovoltaics, interpretation
                      of data obtained on multilayer samples is highly challenging
                      due to the superposition of various effects that modulate
                      the charge-carrier concentration in the perovskite layer and
                      thereby the measured photoluminescence (PL). These effects
                      include bulk and interfacial recombination, charge transfer
                      to electron- or hole transport layers, and capacitive
                      charging or discharging. Here, numerical simulations with
                      Sentauraus TCAD, analytical solutions, and experimental data
                      with a dynamic range of ≈7 orders of magnitude on a
                      variety of different sample geometries, from perovskite
                      films on glass to full devices, are combined to present an
                      improved understanding of this method. A presentation of the
                      decay time of the TPL decay that follows from taking the
                      derivative of the photoluminescence at every time is
                      proposed. Plotting this decay time as a function of the
                      time-dependent quasi-Fermi-level splitting enables
                      distinguishing between the different contributions of
                      radiative and non-radiative recombination as well as charge
                      extraction and capacitive effects to the decay.},
      cin          = {IEK-5},
      ddc          = {050},
      cid          = {I:(DE-Juel1)IEK-5-20101013},
      pnm          = {121 - Photovoltaik und Windenergie (POF4-121)},
      pid          = {G:(DE-HGF)POF4-121},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000638438200001},
      doi          = {10.1002/aenm.202003489},
      url          = {https://juser.fz-juelich.de/record/890727},
}