Microseconds, milliseconds and seconds: deconvoluting the dynamic behaviour of planar perovskite solar cells

Abstract

Perovskite solar cells (PSC) are shown to behave as coupled ionic-electronic conductors with strong evidence that the ionic environment moderates both the rate of electron-hole recombination and the band offsets in planar PSC. Numerous models have been presented to explain the behavior of perovskite solar cells, but to date no single model has emerged that can explain both the frequency and time dependent response of the devices. Here we present a straightforward coupled ionic-electronic model that can be used to explain the large amplitude transient behavior and the impedance response of PSC.

arXiv comment16 pages, 7 figures

References in corpus (3)

• Evidence for ion migration in hybrid perovskite solar cells with minimal hysteresis
• What is moving in hybrid halide perovskite solar cells?
• Persistent photovoltage in methylammonium lead iodide perovskite solar cells

Cited by in corpus (9)

• Quantification of Ion Migration in CH3NH3PbI3 Perovskite Solar Cells by Transient Capacitance Measurements
• Ionic-to-electronic current amplification in hybrid perovskite solar cells: ionically gated transistor-interface circuit model explains hysteresis and impedance of mixed conducting devices
• The Two Faces of Capacitance: New Interpretations for Electrical Impedance Measurements of Perovskite Solar Cells and Their Relation to Hysteresis
• From Dye Sensitized to Perovskite Solar Cells, The Missing Link
• Quantifying mobile ions in perovskite-based devices with temperature-dependent capacitance measurements: frequency versus time domain
• Low Frequency Carrier Kinetics in Perovskite Solar Cells
• 3D-to-2D Transition of Anion Mobility in CsPbBr${}_3$ under Pressure
• Orientational migration of halide ion in lead halide perovskites
• A new ideality factor for perovskite solar cells and an analytical theory for their impedance spectroscopy response