Vincent M. Le Corre, Jonas Diekmann, Francisco Peña-Camargo, Jarla Thiesbrummel, Nurlan Tokmoldin, Emilio Gutierrez-Partida, Karol Pawel Peters, Lorena Perdigón-Toro, Moritz H. Futscher, Felix Lang, Jonathan Warby, Henry J. Snaith, Dieter Neher, Martin Stolterfoht
- 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 (approximate to 1000 V s(-1)). 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 (approximate to 100mv s(-1)). 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 andPerovskite 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 (approximate to 1000 V s(-1)). 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 (approximate to 100mv s(-1)). 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.…
MetadatenAuthor details: | Vincent M. Le CorreORCiD, Jonas DiekmannORCiD, Francisco Peña-CamargoORCiDGND, Jarla ThiesbrummelORCiD, Nurlan TokmoldinORCiDGND, Emilio Gutierrez-PartidaGND, Karol Pawel Peters, Lorena Perdigón-ToroORCiDGND, Moritz H. FutscherORCiD, Felix Lang, Jonathan WarbyORCiDGND, Henry J. SnaithORCiDGND, Dieter NeherORCiDGND, Martin StolterfohtORCiDGND |
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DOI: | https://doi.org/10.1002/solr.202100772 |
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ISSN: | 2367-198X |
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Title of parent work (English): | Solar RRL |
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Publisher: | Wiley-VCH |
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Place of publishing: | Weinheim |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2021/12/21 |
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Publication year: | 2022 |
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Release date: | 2024/01/05 |
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Tag: | hysteresis; mobile ions; perovskite solar cells |
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Volume: | 6 |
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Issue: | 4 |
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Article number: | 2100772 |
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Number of pages: | 10 |
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Funding institution: | Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [SPP; 2196, SURPRISE 423749265, HIPSTER 424709669]; Federal Ministry for; Economic Affairs and Energy within the 7th Energy Research Programme; (P3T-HOPE) [03EE1017C]; HyPerCells (graduate school of the Potsdam; University); HyPerCells (HZB); Alexander von Humboldt Foundation via the; Feodor Lynen program; Netherlands Organisation for Scientific Research; (NWO); Projekt DEAL |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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Peer review: | Referiert |
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Publishing method: | Open Access / Hybrid Open-Access |
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License (German): | CC-BY-NC - Namensnennung, nicht kommerziell 4.0 International |
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