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Improved Performance of All‐Polymer Solar Cells Enabled by Naphthodiperylenetetraimide‐Based Polymer Acceptor
Abstract
A new polymer acceptor, naphthodiperylenetetraimide‐vinylene (NDP‐V), featuring a backbone of altenating naphthodiperylenetetraimide and vinylene units is designed and applied in all‐polymer solar cells (all‐PSCs). With this polymer acceptor, a new record power‐conversion efficiencies (PCE) of 8.59% has been achieved for all‐PSCs. The design principle of NDP‐V is to reduce the conformational disorder in the backbone of a previously developed high‐performance acceptor, PDI‐V, a perylenediimide‐vinylene polymer. The chemical modifications result in favorable changes to the molecular packing behaviors of the acceptor and improved morphology of the donor–acceptor (PTB7‐Th:NDP‐V) blend, which is evidenced by the enhanced hole and electron transport abilities of the active layer. Moreover, the stronger absorption of NDP‐V in the shorter‐wavelength range offers a better complement to the donor. All these factors contribute to a short‐circuit current density (J sc) of 17.07 mA cm−2. With a fill factor (FF) of 0.67, an average PCE of 8.48% is obtained, representing the highest value thus far reported for all‐PSCs.
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Cited by
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Self-citationWadsworth, 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
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Self-citationWu, Q., Kang, Z., Gong, Q., Guo, X., Wang, H., Wang, D., Jiao, L., & Hao, E. (2020) · Organic Letters · doi:10.1021/acs.orglett.0c02704 · Cited by 60
Metadata
- Authors
- Guo, Y., Li, Y., Awartani, O., Han, H., Zhao, J., Ade, H., Yan, H., & Zhao, D.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2017-05-03
- Volume
- 29
- Issue
- 26
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2611281217
- Cited by
- 330
- References
- 0
- FWCI
- 24.28
- Type
- journal article
- Language
- en
- Open access
- closed
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- Guo, Y., Li, Y., Awartani, O., Han, H., Zhao, J., Ade, H., Yan, H., & Zhao, D. (2017). Improved Performance of All‐Polymer Solar Cells Enabled by Naphthodiperylenetetraimide‐Based Polymer Acceptor. Advanced Materials. https://doi.org/10.1002/adma.201700309
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