| 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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Zu, Fengshuo
Humboldt-Universität zu Berlin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Ion-induced field screening as a dominant factor in perovskite solar cell operational stabilitycitations
- 2023Effect of ground state charge transfer and photoinduced charge separation on the energy level alignment at metal halide perovskite/organic charge transport layer interfaces
- 2023Charge Selective Contacts to Metal Halide Perovskites Studied with Photoelectron Spectroscopy ; X-Ray, Ultraviolet, and Visible Light Induced Energy Level Realignment
- 2022Illumination-Driven Energy Level Realignment at Buried Interfaces between Organic Charge Transport Layers and a Lead Halide Perovskite
- 2022The Electronic Properties of a 2D Ruddlesden‐Popper Perovskite and its Energy Level Alignment with a 3D Perovskite Enable Interfacial Energy Transfercitations
- 2022Electronic properties of metal halide perovskites and their interfaces: the basics
- 2022Understanding performance limiting interfacial recombination in pin Perovskite solar cellscitations
- 2021Mechanism and Timescales of Reversible p‐Doping of Methylammonium Lead Triiodide by Oxygencitations
- 2021Mechanism and Timescales of Reversible p‐Doping of Methylammonium Lead Triiodide by Oxygencitations
- 2021Understanding and suppressing non-radiative losses in methylammonium-free wide-bandgap perovskite solar cellscitations
- 2021Photoinduced energy-level realignment at interfaces between organic semiconductors and metal-halide perovskitescitations
- 2021Reversible oxygen-induced p-doping of mixed-cation halide perovskites
- 2019Constructing the Electronic Structure of CH3NH3PbI3 and CH3NH3PbBr3 Perovskite Thin Films from Single-Crystal Band Structure Measurementscitations
- 2019Unraveling the Electronic Properties of Lead Halide Perovskites with Surface Photovoltage in Photoemission Studiescitations
- 2019The impact of energy alignment and interfacial recombination on the internal and external open-circuit voltage of perovskite solar cellscitations
- 2019High open circuit voltages in pin-type perovskite solar cells through strontium additioncitations
- 2018Interface Engineering of Solution-Processed Hybrid Organohalide Perovskite Solar Cellscitations
- 2017Reduced Interface-Mediated Recombination for High Open-Circuit Voltages in CH3NH3PbI3 Solar Cellscitations
Places of action
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article
Constructing the Electronic Structure of CH3NH3PbI3 and CH3NH3PbBr3 Perovskite Thin Films from Single-Crystal Band Structure Measurements
Abstract
Photovoltaic cells based on halide perovskites, possessing remarkably high power conversion efficiencies have been reported. To push the development of such devices further, a comprehensive and reliable understanding of their electronic properties is essential but presently not available. To provide a solid foundation for understanding the electronic properties of polycrystalline thin films, we employ single-crystal band structure data from angle-resolved photoemission measurements. For two prototypical perovskites (CH3NH3PbBr3 and CH3NH3PbI3), we reveal the band dispersion in two high-symmetry directions and identify the global valence band maxima. With these benchmark data, we construct "standard" photoemission spectra from polycrystalline thin film samples and resolve challenges discussed in the literature for determining the valence band onset with high reliability. Within the framework laid out here, the consistency of relating the energy level alignment in perovskite-based photovoltaic and optoelectronic devices with their functional parameters is substantially enhanced.