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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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Kirchartz, Thomas
Forschungszentrum Jülich
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024High‐Bandgap Perovskites for Efficient Indoor Light Harvestingcitations
- 2023Characterizing the influence of charge extraction layers on the performance of triple‐cation perovskite solar cellscitations
- 2022Tantalum Oxide as an Efficient Alternative Electron Transporting Layer for Perovskite Solar Cellscitations
- 2021Comment on “Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells”citations
- 2021Pathways toward 30% Efficient Single‐Junction Perovskite Solar Cells and the Role of Mobile Ionscitations
- 2021Roadmap on organic-inorganic hybrid perovskite semiconductors and devicescitations
- 2021Pathways toward 30% efficient single-junction perovskite solar cells and the role of mobile ionscitations
- 2020Photoluminescence-based characterization of halide perovskites for photovoltaicscitations
- 2020Femto- to Microsecond Dynamics of Excited Electrons in a Quadruple Cation Perovskitecitations
- 2020Femto- to Microsecond Dynamics of Excited Electrons in a Quadruple Cation Perovskitecitations
- 2020How To Quantify the Efficiency Potential of Neat Perovskite Films: Perovskite Semiconductors with an Implied Efficiency Exceeding 28%citations
- 2019Charge-Carrier Recombination in Halide Perovskitescitations
- 2019Charge-Carrier Recombination in Halide Perovskites.
- 2019The impact of energy alignment and interfacial recombination on the internal and external open-circuit voltage of perovskite solar cellscitations
- 2019Highly Compact TiO<sub>2</sub> Films by Spray Pyrolysis and Application in Perovskite Solar Cellscitations
- 2019Fermi-level pinning in methylammonium lead iodide perovskitescitations
- 2018Spin-coated planar Sb<sub>2</sub>S<sub>3</sub> hybrid solar cells approaching 5% efficiencycitations
- 2016Physical aspects of ferroelectric semiconductors for photovoltaic solar energy conversioncitations
- 2016Classification of solar cells according to mechanisms of charge separation and charge collectioncitations
- 2013Influence of crystallinity and energetics on charge separation in polymer–inorganic nanocomposite films for solar cellscitations
Places of action
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article
How To Quantify the Efficiency Potential of Neat Perovskite Films: Perovskite Semiconductors with an Implied Efficiency Exceeding 28%
Abstract
<jats:title>Abstract</jats:title><jats:p>Perovskite photovoltaic (PV) cells have demonstrated power conversion efficiencies (PCE) that are close to those of monocrystalline silicon cells; however, in contrast to silicon PV, perovskites are not limited by Auger recombination under 1‐sun illumination. Nevertheless, compared to GaAs and monocrystalline silicon PV, perovskite cells have significantly lower fill factors due to a combination of resistive and non‐radiative recombination losses. This necessitates a deeper understanding of the underlying loss mechanisms and in particular the ideality factor of the cell. By measuring the intensity dependence of the external open‐circuit voltage and the internal quasi‐Fermi level splitting (QFLS), the transport resistance‐free efficiency of the complete cell as well as the efficiency potential of any neat perovskite film with or without attached transport layers are quantified. Moreover, intensity‐dependent QFLS measurements on different perovskite compositions allows for disentangling of the impact of the interfaces and the perovskite surface on the non‐radiative fill factor and open‐circuit voltage loss. It is found that potassium‐passivated triple cation perovskite films stand out by their exceptionally high implied PCEs > 28%, which could be achieved with ideal transport layers. Finally, strategies are presented to reduce both the ideality factor and transport losses to push the efficiency to the thermodynamic limit.</jats:p>