activity
20152023
most citedLocal polar fluctuations in lead halide perovskite crystals

699 citations · 2.1k across the 24 of their papers we have counts for

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Showing 2018Show all

5 papers · 1 filter

cond-mat.mtrl-sci2018★ 147 cited

How Lattice and Charge Fluctuations Control Carrier Dynamics in Halide Perovskites

Matthew Z. Mayers, Liang Z. Tan, David A. Egger +2

Here we develop a microscopic approach aimed at the description of a suite of physical effects related to carrier transport in, and the optical properties of, halide perovskites. O…

cond-mat.mtrl-sci2018

Breakdown of the static picture of defect energetics in halide perovskites: the case of the Br vacancy in CsPbBr3

Ayala V. Cohen, David A. Egger, Andrew M. Rappe +1

We consider the Br vacancy in CsPbBr3 as a prototype for the impact of structural dynamics on defect energetics in halide perovskites (HaPs). Using first-principles molecular dynam…

cond-mat.mtrl-sci2018★ 35 cited

Intermediate Bands in Zero-Dimensional Antimony Halide Perovskites

David A. Egger

Using density functional theory, the structural and electronic-structure properties of a recently discovered, zero-dimensional antimony halide perovskite are studied. It is found t…

cond-mat.mtrl-sci2018★ 118 cited

Impact of Small Phonon Energies on the Charge-Carrier Lifetimes in Metal-Halide Perovskites

Thomas Kirchartz, Tom Markvart, Uwe Rau +1

Solar cells based on metal-halide perovskite absorber layers have resulted in outstanding photovoltaic devices with long non-radiative lifetimes as a crucial feature enabling high…

cond-mat.mtrl-sci2018★ 28 cited

The Effect of Ionic Composition on Acoustic Phonon Speeds in Hybrid Perovskites from Brillouin Spectroscopy and Density Functional Theory

Irina V. Kabakova, Ido Azuri, Zhuoying Chen +6

Hybrid organic-inorganic perovskites (HOIPs) have recently emerged as highly promising solution-processable materials for photovoltaic (PV) and other optoelectronic devices. HOIPs…