The ferroelectric–ferroelastic debate about metal halide perovskites
Metal halide perovskites (MHPs) are solution-processed materials with exceptional
photoconversion efficiencies that have brought a paradigm shift in photovoltaics. The nature …
photoconversion efficiencies that have brought a paradigm shift in photovoltaics. The nature …
Photoprotection in metal halide perovskites by ionic defect formation
Photostability is critical for long-term solar cell operation. While light-triggered defects are
usually reported as evidence of material degradation, we reveal that the formation of certain …
usually reported as evidence of material degradation, we reveal that the formation of certain …
Dynamic local structure in caesium lead iodide: spatial correlation and transient domains
Metal halide perovskites are multifunctional semiconductors with tunable structures and
properties. They are highly dynamic crystals with complex octahedral tilting patterns and …
properties. They are highly dynamic crystals with complex octahedral tilting patterns and …
Nonlocal screening dictates the radiative lifetimes of excitations in lead halide perovskites
We use path integral molecular dynamics simulations and theory to elucidate the
interactions between charge carriers, as mediated by a lead halide perovskite lattice. We …
interactions between charge carriers, as mediated by a lead halide perovskite lattice. We …
Origin of Ultralow Thermal Conductivity in Metal Halide Perovskites
Resulting from their remarkable structure–property relationships, metal halide perovskites
have garnered tremendous attention in recent years for a plethora of applications. For …
have garnered tremendous attention in recent years for a plethora of applications. For …
Atomistic modeling of extreme near-field heat transport across nanogaps between two polar dielectric materials
The understanding of extreme near-field heat transport across vacuum nanogaps between
polar dielectric materials remains an open question. In this work, we present an investigation …
polar dielectric materials remains an open question. In this work, we present an investigation …
Molecular Rotor–Rotor Heat Diffusion at the Origin of the Enhanced Thermal Conductivity of Hybrid Perovskites at High Temperatures
We demonstrate a new regime of heat conduction in hybrid metal halide perovskites where
the thermal conductivity increases with temperature due to the rotational and librational …
the thermal conductivity increases with temperature due to the rotational and librational …
Tailoring the thermal conductivity of two-dimensional metal halide perovskites
Proper thermal management of solar cells based on metal halide perovskites (MHPs) is key
to increasing their efficiency as well as their durability. Although two-dimensional (2D) MHPs …
to increasing their efficiency as well as their durability. Although two-dimensional (2D) MHPs …
Mechanism of Hot‐Carrier Photoluminescence in Sn‐Based Perovskites
EK Tekelenburg, FVA Camargo, A Filippetti… - Advanced …, 2024 - Wiley Online Library
Metal halide perovskites have shown exceptionally slow hot‐carrier cooling, which has been
attributed to various physical mechanisms without reaching a consensus. Here, experiment …
attributed to various physical mechanisms without reaching a consensus. Here, experiment …
Nonlinear ion mobility at high electric field strengths in the perovskites and
D Kemp, RA De Souza - Physical Review Materials, 2021 - APS
As the characteristic dimensions of perovskite devices shrink to the nanoscale, operating
voltages of a few volts lead to huge field strengths and, consequently, to the possibility of …
voltages of a few volts lead to huge field strengths and, consequently, to the possibility of …