Chidozie Onwudinanti

TL;DR: Li et al. as discussed by the authors employed fluoride to simultaneously passivate both anion and cation vacancies, by taking advantage of the extremely high electronegativity of fluoride, and obtained a power conversion efficiency of 21.46% (and a certified 21.3%-efficient cell) in a device based on the caesium, methylammonium (MA), and formamidinium (FA) triple-cation perovskite (Cs0.05FA0.41)Pb(I0.98Br0.02)3 treated with sodium

TL;DR: It is demonstrated how the unwanted yellow phase can be suppressed by substituting Br for I in CsSn(BrxI1–x)3 with x ≥ 1/3 and predicted that substitution of Rb for Cs results in a highly homogeneous solid solution and therefore an improved film quality and applicability in solar cell devices.

TL;DR: Calculations show a significant drop in the energy barrier to hydrogen penetration when a tin atom or a tin hydride molecule is adsorbed on the ruthenium surface; the barrier has been found to drop in all tested cases with tin.

TL;DR: D density functional theory is used to examine the ways in which hydrogen, having entered the near-surface interstitial voids, can migrate further into the metal or to its surface, and suggests control and modification of surface conditions as a way to influence hydrogen retention and blistering.

TL;DR: In this paper, the authors used density functional theory to show that tin deposition on a clean ruthenium surface exhibits a film-plus-islands (Stranski-Krastanov) growth mode, with the first atomic layer bonding strongly to the substrate.