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Single‐Junction Organic Photovoltaic Cell with 19% Efficiency
Abstract
Improving power conversion efficiency (PCE) is important for broadening the applications of organic photovoltaic (OPV) cells. Here, a maximum PCE of 19.0% (certified value of 18.7%) is achieved in single‐junction OPV cells by combining material design with a ternary blending strategy. An active layer comprising a new wide‐bandgap polymer donor named PBQx‐TF and a new low‐bandgap non‐fullerene acceptor (NFA) named eC9‐2Cl is rationally designed. With optimized light utilization, the resulting binary cell exhibits a good PCE of 17.7%. An NFA F‐BTA3 is then added to the active layer as a third component to simultaneously improve the photovoltaic parameters. The improved light unitization, cascaded energy level alignment, and enhanced intermolecular packing result in open‐circuit voltage of 0.879 V, short‐circuit current density of 26.7 mA cm−2, and fill factor of 0.809. This study demonstrates that further improvement of PCEs of high‐performance OPV cells requires fine tuning of the electronic structures and morphologies of the active layers.
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Cited by
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
Over 19% Efficiency Organic Solar Cells by Regulating Multidimensional Intermolecular Interactions
Han, C., Wang, J., Zhang, S., Chen, L., Bi, F., Wang, J., Yang, C., Wang, P., Li, Y., & Bao, X. (2023) · Advanced Materials · doi:10.1002/adma.202208986 · Cited by 308
Ternary Blend Organic Solar Cells: Understanding the Morphology from Recent Progress
Xu, X., Li, Y., & Peng, Q. (2022) · Advanced Materials · doi:10.1002/adma.202107476 · Cited by 258
Sun, S., Zha, W., Tian, C., Wei, Z., Luo, Q., Ma, C., Liu, W., & Zhu, X. (2023) · Advanced Materials · doi:10.1002/adma.202305092 · Cited by 67
Self-citationThree-Dimensional Solar Harvesting with Transparent Spectral Selective Photovoltaics in Agrivoltaics
Shi, D. (2025) · Energies · doi:10.3390/en18071788 · Cited by 10
Metadata
- Authors
- Cui, Y., Xu, Y., Yao, H., Bi, P., Hong, L., Zhang, J., Zu, Y., Zhang, T., Qin, J., Ren, J., Chen, Z., He, C., Hao, X., Wei, Z., & Hou, J.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2021-08-31
- Volume
- 33
- Issue
- 41
- Pages
- e2102420-e2102420
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W3197814413
- Cited by
- 1,469
- References
- 0
- FWCI
- 91.45
- Type
- journal article
- Language
- en
- Open access
- closed
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- Cui, Y., Xu, Y., Yao, H., Bi, P., Hong, L., Zhang, J., Zu, Y., Zhang, T., Qin, J., Ren, J., Chen, Z., He, C., Hao, X., Wei, Z., & Hou, J. (2021). Single‐Junction Organic Photovoltaic Cell with 19% Efficiency. Advanced Materials. https://doi.org/10.1002/adma.202102420
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