| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Skelton, Jonathan M.
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2024Electronic transport and the thermoelectric properties of donor-doped SrTiO3citations
- 2024Composition-dependent morphologies of CeO2 nanoparticles in the presence of Co-adsorbed H2O and CO2citations
- 2024Composition-dependent morphologies of CeO 2 nanoparticles in the presence of Co-adsorbed H 2 O and CO 2 : a density functional theory studycitations
- 2023Thermoelectric properties of Pnma and R3m GeS and GeSecitations
- 2023A Low‐Temperature Synthetic Route Toward a High‐Entropy 2D Hexernary Transition Metal Dichalcogenide for Hydrogen Evolution Electrocatalysiscitations
- 2023A Low‐Temperature Synthetic Route Toward a High‐Entropy 2D Hexernary Transition Metal Dichalcogenide for Hydrogen Evolution Electrocatalysiscitations
- 2023Breathing Behaviour Modification of Gallium MIL‐53 Metal–Organic Frameworks Induced by the Bridging Framework Inorganic Anioncitations
- 2023Synthetic Strategies toward High Entropy Materials: Atoms-to-Lattices for Maximum Disordercitations
- 2023Enhanced Thermoelectric Performance of Tin(II) Sulfide Thin Films Prepared by Aerosol Assisted Chemical Vapor Depositioncitations
- 2020Polymorph exploration of bismuth stannate using first-principles phonon mode mappingcitations
- 2020Lattice dynamics of Pnma Sn(S1-xSex) solid solutions: energetics, phonon spectra and thermal transportcitations
- 2020Assessment of dynamic structural instabilities across 24 cubic inorganic halide perovskitescitations
- 2020Watching Photochemistry Happencitations
- 2019Thermodynamics, Electronic Structure, and Vibrational Properties of Sn n(S 1- xSe x) m Solid Solutions for Energy Applicationscitations
- 2019Room Temperature Metallic Conductivity in a Metal–Organic Framework Induced by Oxidationcitations
- 2019Thermodynamics, Electronic Structure, and Vibrational Properties of Sn n (S 1– x Se x) m Solid Solutions for Energy Applicationscitations
- 2019Photocrystallographic studies on transition metal nitrito metastable linkage isomers: manipulating the metastable statecitations
- 2018Acoustic phonon lifetimes limit thermal transport in methylammonium lead iodidecitations
- 2018Understanding the fast phase-change mechanism of tetrahedrally bonded Cu 2 GeTe 3 :Comprehensive analyses of electronic structure and transport phenomenacitations
- 2018Understanding the fast phase-change mechanism of tetrahedrally bonded Cu2GeTe3citations
- 2018Hydrogen Bonding versus Entropycitations
- 2017Chemical and Lattice Stability of the Tin Sulfidescitations
- 2016Phonon anharmonicity, lifetimes, and thermal transport in CH 3 NH 3 PbI 3 from many-body perturbation theorycitations
- 2016Phonon anharmonicity, lifetimes, and thermal transport in CH3NH3PbI3 from many-body perturbation theorycitations
- 2016Observation of a re-entrant phase transition in the molecular complex tris(μ2-3,5-diisopropyl-1,2,4-triazolato-κ2N1:N2)trigold(I) under high pressurecitations
- 2016A general forcefield for accurate phonon properties of metal-organic frameworkscitations
- 2016Band alignments, valence bands, and core levels in the tin sulfides SnS, SnS2, and Sn2S3citations
- 2016Computational materials design of crystalline solidscitations
- 2015Influence of the exchange-correlation functional on the quasi-harmonic lattice dynamics of II-VI semiconductorscitations
- 2014Atomistic origin of the enhanced crystallization speed and n-type conductivity in Bi-doped Ge-Sb-Te phase-change materialscitations
Places of action
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article
Acoustic phonon lifetimes limit thermal transport in methylammonium lead iodide
Abstract
Hybrid organic–inorganic perovskites (HOIPs) have become an important class of semiconductors for solar cells and other optoelectronic applications. Electron–phonon coupling plays a critical role in all optoelectronic devices, and although the lattice dynamics and phonon frequencies of HOIPs have been well studied, little attention has been given to phonon lifetimes. We report high-precision momentum-resolved measurements of acoustic phonon lifetimes in the hybrid perovskite methylammonium lead iodide (MAPI), using inelastic neutron spectroscopy to provide high-energy resolution and fully deuterated single crystals to reduce incoherent scattering from hydrogen. Our measurements reveal extremely short lifetimes on the order of picoseconds, corresponding to nanometer mean free paths and demonstrating that acoustic phonons are unable to dissipate heat efficiently. Lattice-dynamics calculations using ab initio third-order perturbation theory indicate that the short lifetimes stem from strong three-phonon interactions and a high density of low-energy optical phonon modes related to the degrees of freedom of the organic cation. Such short lifetimes have significant implications for electron–phonon coupling in MAPI and other HOIPs, with direct impacts on optoelectronic devices both in the cooling of hot carriers and in the transport and recombination of band edge carriers. These findings illustrate a fundamental difference between HOIPs and conventional photovoltaic semiconductors and demonstrate the importance of understanding lattice dynamics in the effort to develop metal halide perovskite optoelectronic devices.