The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Supramolecular Halogen Bond Passivation of Organic–Inorganic Halide Perovskite Solar Cells
Abstract
Organic-inorganic halide perovskites, such as CH3NH3PbX3 (X = I(-), Br(-), Cl(-)), are attracting growing interest to prepare low-cost solar cells that are capable of converting sunlight to electricity at the highest efficiencies. Despite negligible effort on enhancing materials' purity or passivation of surfaces, high efficiencies have already been achieved. Here, we show that trap states at the perovskite surface generate charge accumulation and consequent recombination losses in working solar cells. We identify that undercoordinated iodine ions within the perovskite structure are responsible and make use of supramolecular halogen bond complexation to successfully passivate these sites. Following this strategy, we demonstrate solar cells with maximum power conversion efficiency of 15.7% and stable power output over 15% under constant 0.81 V forward bias in simulated full sunlight. The surface passivation introduces an important direction for future progress in perovskite solar cells.
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Cites
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
O'Regan, B., & Grätzel, M. (1991) · Nature · doi:10.1038/353737a0 · Cited by 28,599
Opportunities and challenges for a sustainable energy future
Chu, S., & Majumdar, A. (2012) · Nature · doi:10.1038/nature11475 · Cited by 12,550
Stranks, S. D., Eperon, G. E., Grancini, G., Menelaou, C., Alcocer, M. J. P., Leijtens, T., Herz, L. M., Petrozza, A., & Snaith, H. J. (2013) · Science · doi:10.1126/science.1243982 · Cited by 10,413
Self-citationKim, H.-S., Lee, C.-R., Im, J.-H., Lee, K.-B., Moehl, T., Marchioro, A., Moon, S.-J., Humphry-Baker, R., Yum, J.-H., Moser, J. E., et al. (2012) · Scientific Reports · doi:10.1038/srep00591 · Cited by 8,092
Cited by
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
Impact of microstructure on local carrier lifetime in perovskite solar cells
de Quilettes, D. W., Vorpahl, S. M., Stranks, S. D., Nagaoka, H., Eperon, G. E., Ziffer, M. E., Snaith, H. J., & Ginger, D. S. (2015) · Science · doi:10.1126/science.aaa5333 · Cited by 2,198
Self-citationBrenner, T. M., Egger, D. A., Kronik, L., Hodes, G., & Cahen, D. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2015.7 · Cited by 1,557
Halide perovskite materials for solar cells: a theoretical review
Yin, W.-J., Yang, J.-H., Kang, J., Yan, Y., & Wei, S.-H. (2015) · Journal of Materials Chemistry A · doi:10.1039/c4ta05033a · Cited by 1,437
Stability of Metal Halide Perovskite Solar Cells
Leijtens, T., Eperon, G. E., Noel, N. K., Habisreutinger, S. N., Petrozza, A., & Snaith, H. J. (2015) · Advanced Energy Materials · doi:10.1002/aenm.201500963 · Cited by 1,308
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Metadata
- Authors
- Abate, A., Saliba, M., Hollman, D. J., Stranks, S. D., Wojciechowski, K., Avolio, R., Grancini, G., Petrozza, A., & Snaith, H. J.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-05-07
- Volume
- 14
- Issue
- 6
- Pages
- 3247-3254
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2048126895
- Cited by
- 774
- References
- 4
- FWCI
- 33.61
- Type
- journal article
- Language
- en
- Open access
- closed
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