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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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Caprioglio, Pietro
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Ion-induced field screening as a dominant factor in perovskite solar cell operational stabilitycitations
- 2024Wide-Gap Perovskites for Indoor Photovoltaicscitations
- 2023Chloride-Based Additive Engineering for Efficient and Stable Wide-Bandgap Perovskite Solar Cellscitations
- 2023Chloride‐Based Additive Engineering for Efficient and Stable Wide‐Bandgap Perovskite Solar Cellscitations
- 2022Monolithic perovskite/silicon tandem solar cell with >29% efficiency by enhanced hole extraction
- 2022Perovskite-organic tandem solar cells with indium oxide interconnectcitations
- 2021Pathways toward 30% Efficient Single‐Junction Perovskite Solar Cells and the Role of Mobile Ionscitations
- 2021Understanding and suppressing non-radiative losses in methylammonium-free wide-bandgap perovskite solar cellscitations
- 2021Pathways toward 30% efficient single-junction perovskite solar cells and the role of mobile ionscitations
- 2021Universal Current Losses in Perovskite Solar Cells Due to Mobile Ionscitations
- 2021Universal current losses in Perovskite solar cells due to mobile ionscitations
- 2020Non-radiative recombination losses in perovskite solar cells
- 2020How To Quantify the Efficiency Potential of Neat Perovskite Films: Perovskite Semiconductors with an Implied Efficiency Exceeding 28%citations
- 2019The Role of Bulk and Interface Recombination in High-Efficiency Low-Dimensional Perovskite Solar Cellscitations
- 2019The impact of energy alignment and interfacial recombination on the internal and external open-circuit voltage of perovskite solar cellscitations
- 2019The Role of Bulk and Interface Recombination in High‐Efficiency Low‐Dimensional Perovskite Solar Cellscitations
- 2019High open circuit voltages in pin-type perovskite solar cells through strontium additioncitations
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article
Universal Current Losses in Perovskite Solar Cells Due to Mobile Ions
Abstract
<p>Efficient mixed metal lead-tin halide perovskites are essential for the development of all-perovskite tandem solar cells, however they are currently limited by significant short-circuit current losses despite their near optimal bandgap (≈1.25 eV). Herein, the origin of these losses is investigated, using a combination of voltage dependent photoluminescence (PL) timeseries and various charge extraction measurements. It is demonstrated that the Pb/Sn-perovskite devices suffer from a reduction in the charge extraction efficiency within the first few seconds of operation, which leads to a loss in current and lower maximum power output. In addition, the emitted PL from the device rises on the exact same timescales due to the accumulation of electronic charges in the active layer. Using transient charge extraction measurements, it is shown that these observations cannot be explained by doping-induced electronic charges but by the movement of mobile ions toward the perovskite/transport layer interfaces, which inhibits charge extraction due to band flattening. Finally, these findings are generalized to lead-based perovskites, showing that the loss mechanism is universal. This elucidates the negative role mobile ions play in perovskite solar cells and paves a path toward understanding and mitigating a key loss mechanism.</p>