• openAccess   Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr3 Single Crystals 

      García-Batlle, Marisé; Mayén Guillén, Javier; Chapran, Marian; Baussens, Oriane; Zaccaro, Julien; Verilhac, Jean‐Marie; Gros-Daillon, Eric; Guerrero, Antonio; Almora Rodríguez, Osbel; Garcia-Belmonte, Germà American Chemical Society (2022-03-11)
      The optoelectronic properties of halide perovskite materials have fostered their utilization in many applications. Unravelling their working mechanisms remains challenging because of their mixed ionic–electronic conductive ...
    • openAccess   Negative Capacitance and Inverted Hysteresis: Matching Features in Perovskite Solar Cells 

      Alvarez, Agustin; Arcas, Ramón; Aranda Alonso, Clara; Bethencourt, Loengrid; Mas, Elena; Saliba, Michael; Fabregat-Santiago, Francisco American Chemical Society (2020-10-01)
      Negative capacitance in the low-frequency domain and inverted hysteresis are familiar features in perovskite solar cells, which origin is still under discussion. Here we use impedance spectroscopy to analyze these responses ...