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Charge transfer rates and electron trapping at buried interfaces of perovskite solar cells
Open accessAbstract
Identification of electronic processes at buried interfaces of charge-selective contacts is crucial for photovoltaic and photocatalysis research. Here, transient surface photovoltage (SPV) is used to study the passivation of different hole-selective carbazole-based SAMs. It is shown that transient SPV and transient photoluminescence provide complementary information on charge transfer kinetics and trapping/de-trapping mechanisms, and that trap-assisted non-radiative recombination losses originate from electron trapping at the SAM-modified ITO/perovskite interface. The hole transfer rates and the density of interface electron traps, obtained by fitting SPV transients with a minimalistic kinetic model, depended strongly on the SAM's chemical structure, and densities of interface traps as low as 10 9 cm −2 , on par with highly passivated c-Si surfaces, were reached for Me-4PACz, previously used in record perovskite/silicon tandem solar cells. The extracted hole transfer rate constants and interface trap densities correlated well with the corresponding fill factors and open-circuit voltages of high-efficiency solar cells.
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Cited by
Damp heat–stable perovskite solar cells with tailored-dimensionality 2D/3D heterojunctions
Azmi, R., Ugur, E., Seitkhan, A., Aljamaan, F., Subbiah, A. S., Liu, J., Harrison, G. T., Nugraha, M. I., Eswaran, M. K., Babics, M., et al. (2022) · Science · doi:10.1126/science.abm5784 · Cited by 855
Zheng, X., Li, Z., Zhang, Y., Chen, M., Liu, T., Xiao, C., Gao, D., Patel, J. B., Kuciauskas, D., Magomedov, A., et al. (2023) · Nature Energy · doi:10.1038/s41560-023-01227-6 · Cited by 359
Self-citationRationalization of passivation strategies toward high-performance perovskite solar cells
Zhang, Z., Qiao, L., Meng, K., Long, R., Chen, G., & Gao, P. (2023) · Chemical Society Reviews · doi:10.1039/d2cs00217e · Cited by 357
Hu, B., Zhang, T., Li, L., Ning, H., Min, G., Wang, T., Chen, M., Pan, J., Xu, N., Macdonald, T. J., et al. (2025) · Advanced Materials · doi:10.1002/adma.202502160 · Cited by 23
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Metadata
- Authors
- Levine, I., Al-Ashouri, A., Musiienko, A., Hempel, H., Magomedov, A., Drevilkauskaite, A., Getautis, V., Menzel, D., Hinrichs, K., Unold, T., Albrecht, S., & Dittrich, T.
- Venue
- Joule
- Publisher
- Elsevier BV
- Published
- 2021-11
- Volume
- 5
- Issue
- 11
- Pages
- 2915-2933
- ISSN
- 2542-4351 (ISSN-L)
- OpenAlex
- W3193570700
- Cited by
- 461
- References
- 0
- FWCI
- 17.21
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Levine, I., Al-Ashouri, A., Musiienko, A., Hempel, H., Magomedov, A., Drevilkauskaite, A., Getautis, V., Menzel, D., Hinrichs, K., Unold, T., Albrecht, S., & Dittrich, T. (2021). Charge transfer rates and electron trapping at buried interfaces of perovskite solar cells. Joule. https://doi.org/10.1016/j.joule.2021.07.016
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