The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
On the Origin of the Ideality Factor in Perovskite Solar Cells
Open accessAbstract
The measurement of the ideality factor (nid) is a popular tool to infer the dominant recombination type in perovskite solar cells (PSC). However, the true meaning of its values is often misinterpreted in complex multilayered devices such as PSC. In this work, the effects of bulk and interface recombination on the nid are investigated experimentally and theoretically. By coupling intensity‐dependent quasi‐Fermi level splitting measurements with drift diffusion simulations of complete devices and partial cell stacks, it is shown that interfacial recombination leads to a lower nid compared to Shockley–Read–Hall (SRH) recombination in the bulk. As such, the strongest recombination channel determines the nid of the complete cell. An analytical approach is used to rationalize that nid values between 1 and 2 can originate exclusively from a single recombination process. By expanding the study over a wide range of the interfacial energy offsets and interfacial recombination velocities, it is shown that an ideality factor of nearly 1 is usually indicative of strong first‐order non‐radiative interface recombination and that it correlates with a lower device performance. It is only when interface recombination is largely suppressed and bulk SRH recombination dominates that a small nid is again desirable.
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Electron-hole diffusion lengths > 175 μm in solution-grown CH 3 NH 3 PbI 3 single crystals
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Iodide management in formamidinium-lead-halide–based perovskite layers for efficient solar cells
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Unusual defect physics in CH3NH3PbI3 perovskite solar cell absorber
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Maximizing and stabilizing luminescence from halide perovskites with potassium passivation
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Cited by
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Self-citationReducing nonradiative recombination in perovskite solar cells with a porous insulator contact
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Guerrero, A., Bisquert, J., & Garcia-Belmonte, G. (2021) · Chemical Reviews · doi:10.1021/acs.chemrev.1c00214 · Cited by 339
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Metadata
- Authors
- Caprioglio, P., Wolff, C. M., Sandberg, O. J., Armin, A., Rech, B., Albrecht, S., Neher, D., & Stolterfoht, M.
- Venue
- Advanced Energy Materials
- Publisher
- Wiley
- Published
- 2020-06-05
- Volume
- 10
- Issue
- 27
- ISSN
- 1614-6832 (ISSN-L)
- 1614-6840
- OpenAlex
- W3033123351
- Cited by
- 377
- References
- 36
- FWCI
- 13.84
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Caprioglio, P., Wolff, C. M., Sandberg, O. J., Armin, A., Rech, B., Albrecht, S., Neher, D., & Stolterfoht, M. (2020). On the Origin of the Ideality Factor in Perovskite Solar Cells. Advanced Energy Materials. https://doi.org/10.1002/aenm.202000502
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