activity
20072026
most citedLocal polar fluctuations in lead halide perovskite crystals

699 citations · 4.9k across the 64 of their papers we have counts for

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Showing 2018Show all

4 papers · 1 filter

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…

physics.chem-ph2018★ 23 cited

Prediction of electronic couplings for molecular charge transfer using optimally-tuned range-separated hybrid functionals

Debashree Manna, Jochen Blumberger, Jan M. L. Martin +1

Electronic coupling matrix elements are important to the theoretical description of electron transfer processes. However, they are notoriously difficult to obtain accurately from t…

physics.chem-ph2018★ 45 cited

Charge transfer excitations from exact and approximate ensemble Kohn-Sham theory

Tim Gould, Leeor Kronik, Stefano Pittalis

By studying the lowest excitations of an exactly solvable one-dimensional molecular model, we show that components of Kohn-Sham ensembles can be used to describe charge transfers.…

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…