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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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Lang, Felix
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Ion-induced field screening as a dominant factor in perovskite solar cell operational stabilitycitations
- 2024Resolving electron and hole transport properties in semiconductor materials by constant light-induced magneto transportcitations
- 2024Distributed Feedback Lasing in Thermally Imprinted Phase‐Stabilized CsPbI3 Thin Filmscitations
- 2024Resolving electron and hole transport properties in semiconductor materials by constant light-induced magneto transport.
- 2023Methylammonium-free co-evaporated perovskite absorbers with high radiation and UV tolerance: an option for in-space manufacturing of space-PV?citations
- 2022Revealing the doping density in perovskite solar cells and its impact on device performancecitations
- 202221.6%-efficient monolithic perovskite/Cu(In,Ga)Se2 tandem solar cells with thin conformal hole transport layers for integration on rough bottom cell surfaces
- 2022High Open-Circuit Voltage Lead-Free Cs2AgBiBr6 Double Perovskite Solar Cells from Spray-Coating Deposition
- 2022Understanding performance limiting interfacial recombination in pin Perovskite solar cellscitations
- 2022Quantification of Efficiency Losses Due to Mobile Ions in Perovskite Solar Cells via Fast Hysteresis Measurementscitations
- 2021Quantification of efficiency losses due to mobile ions in Perovskite solar cells via fast hysteresis measurementscitations
- 2021Universal Current Losses in Perovskite Solar Cells Due to Mobile Ionscitations
- 2021Spray‐Coated Lead‐Free Cs 2 AgBiBr 6 Double Perovskite Solar Cells with High Open‐Circuit Voltage
- 2021Universal current losses in Perovskite solar cells due to mobile ionscitations
- 2021Proton radiation hardness of perovskite tandem photovoltaics
- 2020Proton Radiation Hardness of Perovskite Tandem Photovoltaicscitations
- 2017It Takes Two to Tango - Double-Layer Selective Contacts in Perovskite Solar Cells for Improved Device Performance and Reduced Hysteresiscitations
- 2017Efficient light management by textured nanoimprinted layers for perovskite solar cellscitations
- 2017It Takes Two to Tango-Double-Layer Selective Contacts in Perovskite Solar Cells for Improved Device Performance and Reduced Hysteresiscitations
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article
Quantification of Efficiency Losses Due to Mobile Ions in Perovskite Solar Cells via Fast Hysteresis Measurements
Abstract
<p>Perovskite semiconductors differ from most inorganic and organic semiconductors due to the presence of mobile ions in the material. Although the phenomenon is intensively investigated, important questions such as the exact impact of the mobile ions on the steady-state power conversion efficiency (PCE) and stability remain. Herein, a simple method is proposed to estimate the efficiency loss due to mobile ions via “fast-hysteresis” measurements by preventing the perturbation of mobile ions out of their equilibrium position at fast scan speeds ((Formula presented.) 1000 V s<sup>−1</sup>). The “ion-free” PCE is between 1% and 3% higher than the steady-state PCE, demonstrating the importance of ion-induced losses, even in cells with low levels of hysteresis at typical scan speeds ((Formula presented.) 100 mV s<sup>−1</sup>). The hysteresis over many orders of magnitude in scan speed provides important information on the effective ion diffusion constant from the peak hysteresis position. The fast-hysteresis measurements are corroborated by transient charge extraction and capacitance measurements and numerical simulations, which confirm the experimental findings and provide important insights into the charge carrier dynamics. The proposed method to quantify PCE losses due to field screening induced by mobile ions clarifies several important experimental observations and opens up a large range of future experiments.</p>