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Effects of Additives on the Morphology of Solution Phase Aggregates Formed by Active Layer Components of High-Efficiency Organic Solar Cells
Abstract
Processing additives are used in organic photovoltaic systems to optimize the active layer film morphology. However, the actual mechanism is not well understood. Using X-ray scattering techniques, we analyze the effects of an additive diiodooctane (DIO) on the aggregation of a high-efficiency donor polymer PTB7 and an acceptor molecule PC(71)BM under solar cell processing conditions. We conclude that DIO selectively dissolves PC(71)BM aggregates, allowing their intercalation into PTB7 domains, thereby optimizing both the domain size and the PTB7-PC(71)BM interface.
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Cited by
Bulk Heterojunction Solar Cells: Morphology and Performance Relationships
Huang, Y., Kramer, E. J., Heeger, A. J., & Bazan, G. C. (2014) · Chemical Reviews · doi:10.1021/cr400353v · Cited by 1,249
Low bandgap semiconducting polymers for polymeric photovoltaics
Liu, C., Wang, K., Gong, X., & Heeger, A. J. (2016) · Chemical Society Reviews · doi:10.1039/c5cs00650c · Cited by 555
Zhang, M., Guo, X., Zhang, S., & Hou, J. (2014) · Advanced Materials · doi:10.1002/adma.201304427 · Cited by 425
A real-time study of the benefits of co-solvents in polymer solar cell processing
van Franeker, J. J., Turbiez, M., Li, W., Wienk, M. M., & Janssen, R. A. J. (2015) · Nature Communications · doi:10.1038/ncomms7229 · Cited by 324
Wan, Q., Guo, X., Wang, Z., Li, W., Guo, B., Ma, W., Zhang, M., & Li, Y. (2016) · Advanced Functional Materials · doi:10.1002/adfm.201602181 · Cited by 299
Metadata
- Authors
- Lou, S. J., Szarko, J. M., Xu, T., Yu, L., Marks, T. J., & Chen, L. X.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-12-05
- Volume
- 133
- Issue
- 51
- Pages
- 20661-20663
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2086942418
- Cited by
- 539
- References
- 0
- FWCI
- 30.97
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lou, S. J., Szarko, J. M., Xu, T., Yu, L., Marks, T. J., & Chen, L. X. (2011). Effects of Additives on the Morphology of Solution Phase Aggregates Formed by Active Layer Components of High-Efficiency Organic Solar Cells. Journal of the American Chemical Society. https://doi.org/10.1021/ja2085564
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