4 papers
Overscreening and Underscreening in Solid-Electrolyte Grain Boundary Space-Charge Layers
Jacob M. Dean, Samuel W. Coles, William R. Saunders +4
Polycrystalline solids can exhibit material properties that differ significantly from those of equivalent single-crystal samples, in part, because of a spontaneous redistribution o…
3D-to-2D Transition of Anion Mobility in CsPbBr under Pressure
Thijs J. A. M. Smolders, Alison B. Walker, Matthew J. Wolf
We study the effects of hydrostatic pressure in the range 0.0--2.0 GPa on anion mobility in the orthorhombic phase of CsPbBr. Using density functional theory and the c…
Towards unification of perovskite stability and photovoltaic performance assessment
Bernard Wenger, Henry J. Snaith, Isabel H. Sörensen +19
With the rapid progress of perovskite photovoltaics (PV), further challenges arise to meet meet the minimum standards required for commercial deployment. Along with the push toward…
Deducing the key physical properties of a perovskite solar cell from its impedance response: insights from drift-diffusion modelling
Antonio Riquelme, Laurence J. Bennett, Nicola E. Courtier +5
Interpreting the impedance response of perovskite solar cells (PSC) is significantly more challenging than for most other photovoltaics. This is for a variety of reasons, of which…