Impedance spectroscopy (IS) is an effective characterization technique used to probe and
distinguish charge dynamics occurring at different timescales in optoelectronic and electric …

Perovskite solar cells (PSCs) have reached impressively high efficiencies in a short period
of time; however, the optoelectronic properties of halide perovskites are surprisingly …

The effects of transport layers on perovskite solar cell performance, in particular anomalous
hysteresis, are investigated. A model for coupled ion vacancy motion and charge transport is …

A variety of experiments on vacuum-deposited methylammonium lead iodide perovskite
solar cells are presented, including JV curves with different scan rates, light intensity …

Ideality factors are used to identify the dominant form of recombination in many types of solar
cells and guide future development. Unusual noninteger and voltage-dependent ideality …

Interpreting the impedance response of perovskite solar cells (PSCs) is significantly more
challenging than for most other photovoltaics. This is for a variety of reasons, of which the …

It is highly probable that perovskite solar cells (PSCs) are mixed electronic-ionic conductors,
with ion migration being the driving force for PSC hysteresis. However, there is much that is …

A combination of experimental studies and drift‐diffusion modeling has been used to
investigate the appearance of inverted hysteresis, where the area under the J–V curve for …

Device model simulation is one of the primary tools for modeling thin film solar cells from
organic materials to organic–inorganic perovskite materials. By directly connecting the …

Details of an open-source planar perovskite solar cell simulator, which includes ion vacancy
migration within the perovskite layer coupled to charge carrier transport throughout the …