637 citations · 740 across the 8 of their papers we have counts for
5 papers · 1 filter
Bayesian parameter estimation for characterising mobile ion vacancies in perovskite solar cells
Samuel G. McCallum, Oliver Nicholls, Kjeld O. Jensen +3
To overcome the challenges associated with poor temporal stability of perovskite solar cells, methods are required that allow for fast iteration of fabrication and characterisation…
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…
Quantifying polaronic effects on charge-carrier scattering and mobility in lead--halide perovskites
Matthew J. Wolf, Lewis A. D. Irvine, Alison B. Walker
The formation of polarons due to the interaction between charge carriers and the crystal lattice has been proposed to have wide-ranging effects on charge carrier dynamics in lead--…
Structural and Electronic Properties of Hybrid Perovskites for High-Efficiency Thin-Film Photovoltaics from First-Principles
Federico Brivio, Alison B. Walker, Aron Walsh
The performance of perovskite solar cells recently exceeded 15% solar-to-electricity conversion efficiency for small-area devices. The fundamental properties of the active absorber…