The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.
High-efficiency polymer solar cells with small photon energy loss
Open accessAbstract
A crucial issue facing polymer-based solar cells is how to manage the energetics of the polymer/fullerene blends to maximize short-circuit current density and open-circuit voltage at the same time and thus the power conversion efficiency. Here we demonstrate that the use of a naphthobisoxadiazole-based polymer with a narrow bandgap of 1.52 eV leads to high open-circuit voltages of approximately 1 V and high-power conversion efficiencies of ∼9% in solar cells, resulting in photon energy loss as small as ∼0.5 eV, which is much smaller than that of typical polymer systems (0.7–1.0 eV). This is ascribed to the high external quantum efficiency for the systems with a very small energy offset for charge separation. These unconventional features of the present polymer system will inspire the field of polymer-based solar cells towards further improvement of power conversion efficiencies with both high short-circuit current density and open-circuit voltage.
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Cites
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Cited by
Non-fullerene acceptors for organic solar cells
Yan, C., Barlow, S., Wang, Z., Yan, H., Jen, A. K.-Y., Marder, S. R., & Zhan, X. (2018) · Nature Reviews Materials · doi:10.1038/natrevmats.2018.3 · Cited by 2,710
Bin, H., Gao, L., Zhang, Z.-G., Yang, Y., Zhang, Y., Zhang, C., Chen, S., Xue, L., Yang, C., Xiao, M., et al. (2016) · Nature Communications · doi:10.1038/ncomms13651 · Cited by 987
Optical Gaps of Organic Solar Cells as a Reference for Comparing Voltage Losses
Wang, Y., Qian, D., Cui, Y., Zhang, H., Hou, J., Vandewal, K., Kirchartz, T., & Gao, F. (2018) · Advanced Energy Materials · doi:10.1002/aenm.201801352 · Cited by 448
Small is Powerful: Recent Progress in Solution‐Processed Small Molecule Solar Cells
Collins, S. D., Ran, N. A., Heiber, M. C., & Nguyen, T. (2017) · Advanced Energy Materials · doi:10.1002/aenm.201602242 · Cited by 414
Long, X., Ding, Z., Dou, C., Zhang, J., Liu, J., & Wang, L. (2016) · Advanced Materials · doi:10.1002/adma.201601205 · Cited by 331
Metadata
- Authors
- Kawashima, K., Tamai, Y., Ohkita, H., Osaka, I., & Takimiya, K.
- Venue
- Nature Communications
- Published
- 2015-12-02
- Volume
- 6
- Issue
- 1
- Pages
- 10085-10085
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2184673216
- Cited by
- 391
- References
- 43
- FWCI
- 31.11
- Type
- journal article
- Language
- en
- Open access
- gold
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- Kawashima, K., Tamai, Y., Ohkita, H., Osaka, I., & Takimiya, K. (2015). High-efficiency polymer solar cells with small photon energy loss. Nature Communications. https://doi.org/10.1038/ncomms10085
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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