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Fused Hexacyclic Nonfullerene Acceptor with Strong Near‐Infrared Absorption for Semitransparent Organic Solar Cells with 9.77% Efficiency
Abstract
A fused hexacyclic electron acceptor, IHIC, based on strong electron‐donating group dithienocyclopentathieno[3,2‐b]thiophene flanked by strong electron‐withdrawing group 1,1‐dicyanomethylene‐3‐indanone, is designed, synthesized, and applied in semitransparent organic solar cells (ST‐OSCs). IHIC exhibits strong near‐infrared absorption with extinction coefficients of up to 1.6 × 10 5m−1 cm−1, a narrow optical bandgap of 1.38 eV, and a high electron mobility of 2.4 × 10−3 cm 2 V−1 s−1. The ST‐OSCs based on blends of a narrow‐bandgap polymer donor PTB7‐Th and narrow‐bandgap IHIC acceptor exhibit a champion power conversion efficiency of 9.77% with an average visible transmittance of 36% and excellent device stability; this efficiency is much higher than any single‐junction and tandem ST‐OSCs reported in the literature.
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Solution-processed organic tandem solar cells with power conversion efficiencies >12%
Li, M., Gao, K., Wan, X., Zhang, Q., Kan, B., Xia, R., Liu, F., Yang, X., Feng, H., Ni, W., et al. (2017) · Nature Photonics · doi:10.1038/nphoton.2016.240 · Cited by 548
Chen, C.-H., Hsieh, C.-H., Dubosc, M., Cheng, Y.-J., & Hsu, C.-S. (2010) · Macromolecules · doi:10.1021/ma902206u · Cited by 195
Metadata
- Authors
- Wang, W., Yan, C., Lau, T., Wang, J., Liu, K., Fan, Y., Lu, X., & Zhan, X.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2017-06-13
- Volume
- 29
- Issue
- 31
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2627044889
- Cited by
- 421
- References
- 2
- FWCI
- 32.33
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, W., Yan, C., Lau, T., Wang, J., Liu, K., Fan, Y., Lu, X., & Zhan, X. (2017). Fused Hexacyclic Nonfullerene Acceptor with Strong Near‐Infrared Absorption for Semitransparent Organic Solar Cells with 9.77% Efficiency. Advanced Materials. https://doi.org/10.1002/adma.201701308
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