The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Reducing Surface Halide Deficiency for Efficient and Stable Iodide-Based Perovskite Solar Cells
Open accessAbstract
State-of-the-art, high-performance perovskite solar cells (PSCs) contain a large amount of iodine to realize smaller bandgaps. However, the presence of numerous iodine vacancies at the surface of the film formed by their evaporation during the thermal annealing process has been broadly shown to induce deep-level defects, incur nonradiative charge recombination, and induce photocurrent hysteresis, all of which limit the efficiency and stability of PSCs. In this work, modifying the defective surface of perovskite films with cadmium iodide (CdI 2 ) effectively reduces the degree of surface iodine deficiency and stabilizes iodine ions via the formation of strong Cd–I ionic bonds. This largely reduces the interfacial charge recombination loss, yielding a high efficiency of 21.9% for blade-coated PSCs with an open-circuit voltage of 1.20 V, corresponding to a record small voltage deficit of 0.31 V. The CdI 2 surface treatment also improves the operational stability of the PSCs, retaining 92% efficiency after constant illumination at 1 sun intensity for 1000 h. This work provides a promising strategy to optimize the surface/interface optoelectronic properties of perovskites for more efficient and stable solar cells and other optoelectronic devices.
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Cites
Iodide management in formamidinium-lead-halide–based perovskite layers for efficient solar cells
Yang, W. S., Park, B.-W., Jung, E. H., Jeon, N. J., Kim, Y. C., Lee, D. U., Shin, S. S., Seo, J., Kim, E. K., Noh, J. H., et al. (2017) · Science · doi:10.1126/science.aan2301 · Cited by 5,445
Surface passivation of perovskite film for efficient solar cells
Jiang, Q., Zhao, Y., Zhang, X., Yang, X., Chen, Y., Chu, Z., Ye, Q., Li, X., Yin, Z., & You, J. (2019) · Nature Photonics · doi:10.1038/s41566-019-0398-2 · Cited by 4,736
Incorporation of rubidium cations into perovskite solar cells improves photovoltaic performance
Saliba, M., Matsui, T., Domanski, K., Seo, J.-Y., Ummadisingu, A., Zakeeruddin, S. M., Correa-Baena, J.-P., Tress, W. R., Abate, A., Hagfeldt, A., et al. (2016) · Science · doi:10.1126/science.aah5557 · Cited by 3,706
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Self-citationIonic transport in hybrid lead iodide perovskite solar cells
Eames, C., Frost, J. M., Barnes, P. R. F., O’Regan, B. C., Walsh, A., & Islam, M. S. (2015) · Nature Communications · doi:10.1038/ncomms8497 · Cited by 2,889
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Self-citationImperfections and their passivation in halide perovskite solar cells
Chen, B., Rudd, P. N., Yang, S., Yuan, Y., & Huang, J. (2019) · Chemical Society Reviews · doi:10.1039/c8cs00853a · Cited by 1,959
Self-citationOrganometal halide perovskite solar cells: degradation and stability
Berhe, T. A., Su, W.-N., Chen, C.-H., Pan, C.-J., Cheng, J.-H., Chen, H.-M., Tsai, M.-C., Chen, L.-Y., Dubale, A. A., & Hwang, B.-J. (2016) · Energy & Environmental Science · doi:10.1039/c5ee02733k · Cited by 1,779
Maximizing and stabilizing luminescence from halide perovskites with potassium passivation
Abdi-Jalebi, M., Andaji-Garmaroudi, Z., Cacovich, S., Stavrakas, C., Philippe, B., Richter, J. M., Alsari, M., Booker, E. P., Hutter, E. M., Pearson, A. J., et al. (2018) · Nature · doi:10.1038/nature25989 · Cited by 1,734
Giant switchable photovoltaic effect in organometal trihalide perovskite devices
Xiao, Z., Yuan, Y., Shao, Y., Wang, Q., Dong, Q., Bi, C., Sharma, P., Gruverman, A., & Huang, J. (2015) · Nature Materials · doi:10.1038/nmat4150 · Cited by 1,625
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Cited by
Mechanical Durability and Flexibility in Perovskite Photovoltaics: Advancements and Applications
Song, F., Zheng, D., Feng, J., Liu, J., Ye, T., Li, Z., Wang, K., Liu, S. (., & Yang, D. (2024) · Advanced Materials · doi:10.1002/adma.202312041 · Cited by 113
Metadata
- Authors
- Wu, W.-Q., Rudd, P. N., Ni, Z., Van Brackle, C. H., Wei, H., Wang, Q., Ecker, B. R., Gao, Y., & Huang, J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-02-07
- Volume
- 142
- Issue
- 8
- Pages
- 3989-3996
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W3005429860
- Cited by
- 341
- References
- 34
- FWCI
- 20.00
- Type
- journal article
- Language
- en
- Open access
- green
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- Wu, W.-Q., Rudd, P. N., Ni, Z., Van Brackle, C. H., Wei, H., Wang, Q., Ecker, B. R., Gao, Y., & Huang, J. (2020). Reducing Surface Halide Deficiency for Efficient and Stable Iodide-Based Perovskite Solar Cells. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.9b13418
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