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Donor polymer design enables efficient non-fullerene organic solar cells
Open accessAbstract
To achieve efficient organic solar cells, the design of suitable donor–acceptor couples is crucially important. State-of-the-art donor polymers used in fullerene cells may not perform well when they are combined with non-fullerene acceptors, thus new donor polymers need to be developed. Here we report non-fullerene organic solar cells with efficiencies up to 10.9%, enabled by a novel donor polymer that exhibits strong temperature-dependent aggregation but with intentionally reduced polymer crystallinity due to the introduction of a less symmetric monomer unit. Our comparative study shows that an analogue polymer with a C2 symmetric monomer unit yields highly crystalline polymer films but less efficient non-fullerene cells. Based on a monomer with a mirror symmetry, our best donor polymer exhibits reduced crystallinity, yet such a polymer matches better with small molecular acceptors. This study provides important insights to the design of donor polymers for non-fullerene organic solar cells.
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Cites
Bay-linked perylene bisimides as promising non-fullerene acceptors for organic solar cells
Jiang, W., Ye, L., Li, X., Xiao, C., Tan, F., Zhao, W., Hou, J., & Wang, Z. (2014) · Chem. Commun. · doi:10.1039/c3cc47204c · Cited by 307
Cited by
Next-generation organic photovoltaics based on non-fullerene acceptors
Cheng, P., Li, G., Zhan, X., & Yang, Y. (2018) · Nature Photonics · doi:10.1038/s41566-018-0104-9 · Cited by 1,905
Renewed Prospects for Organic Photovoltaics
Zhang, G., Lin, F. R., Qi, F., Heumüller, T., Distler, A., Egelhaaf, H.-J., Li, N., Chow, P. C. Y., Brabec, C. J., Jen, A. K.-Y., et al. (2022) · Chemical Reviews · doi:10.1021/acs.chemrev.1c00955 · Cited by 1,052
Wadsworth, A., Moser, M., Marks, A., Little, M. S., Gasparini, N., Brabec, C. J., Baran, D., & McCulloch, I. (2019) · Chemical Society Reviews · doi:10.1039/c7cs00892a · Cited by 986
Fused Nonacyclic Electron Acceptors for Efficient Polymer Solar Cells
Dai, S., Zhao, F., Zhang, Q., Lau, T.-K., Li, T., Liu, K., Ling, Q., Wang, C., Lu, X., You, W., et al. (2017) · Journal of the American Chemical Society · doi:10.1021/jacs.6b12755 · Cited by 864
Single‐Junction Binary‐Blend Nonfullerene Polymer Solar Cells with 12.1% Efficiency
Zhao, F., Dai, S., Wu, Y., Zhang, Q., Wang, J., Jiang, L., Ling, Q., Wei, Z., Ma, W., You, W., et al. (2017) · Advanced Materials · doi:10.1002/adma.201700144 · Cited by 699
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Metadata
- Authors
- Li, Z., Jiang, K., Yang, G., Lai, J. Y. L., Ma, T., Zhao, J., Ma, W., & Yan, H.
- Venue
- Nature Communications
- Published
- 2016-10-26
- Volume
- 7
- Issue
- 1
- Pages
- 13094-13094
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2541201569
- Cited by
- 368
- References
- 1
- FWCI
- 34.00
- Type
- journal article
- Language
- en
- Open access
- gold
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- Li, Z., Jiang, K., Yang, G., Lai, J. Y. L., Ma, T., Zhao, J., Ma, W., & Yan, H. (2016). Donor polymer design enables efficient non-fullerene organic solar cells. Nature Communications. https://doi.org/10.1038/ncomms13094
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