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Origin of the light intensity dependence of the short-circuit current of polymer/fullerene solar cells
Open accessAbstract
A typical feature of polymer/fullerene based solar cells is that the current density under short-circuit conditions (Jsc) does not scale exactly linearly with light intensity (I). Instead, a power law relationship is found given by Jsc∝Iα, where α ranges from 0.85 to 1. In a number of reports this deviation from unity is speculated to arise from the occurrence of bimolecular recombination. We demonstrate that the dependence of the photocurrent in bulk heterojunction solar cells is governed by the build-up of space-charge in the device as a consequence of a difference in electron- and hole mobility. We have verified this for an experimental model system in which the mobility difference can be tuned from one to three orders of magnitude by changing the annealing treatment.
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Cited by
Kim, H.-S., Lee, C.-R., Im, J.-H., Lee, K.-B., Moehl, T., Marchioro, A., Moon, S.-J., Humphry-Baker, R., Yum, J.-H., Moser, J. E., et al. (2012) · Scientific Reports · doi:10.1038/srep00591 · Cited by 8,092
Recombination in polymer-fullerene bulk heterojunction solar cells
Cowan, S. R., Roy, A., & Heeger, A. J. (2010) · Physical Review B · doi:10.1103/physrevb.82.245207 · Cited by 2,071
Kyaw, A. K. K., Wang, D. H., Gupta, V., Leong, W. L., Ke, L., Bazan, G. C., & Heeger, A. J. (2013) · ACS Nano · doi:10.1021/nn401267s · Cited by 1,046
Ultraflexible organic photonic skin
Yokota, T., Zalar, P., Kaltenbrunner, M., Jinno, H., Matsuhisa, N., Kitanosako, H., Tachibana, Y., Yukita, W., Koizumi, M., & Someya, T. (2016) · Science Advances · doi:10.1126/sciadv.1501856 · Cited by 1,024
Dang, M. T., Hirsch, L., Wantz, G., & Wuest, J. D. (2013) · Chemical Reviews · doi:10.1021/cr300005u · Cited by 587
Metadata
- Authors
- Koster, L. J. A., Mihailetchi, V. D., Xie, H., & Blom, P. W. M.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2005-11-07
- Volume
- 87
- Issue
- 20
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W1985360625
- Cited by
- 683
- References
- 0
- FWCI
- 11.12
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: Origin of the light intensity dependence of the short-circuit current of polymer/fullerene solar cells. https://app.cochat.ai/papers/10.1063/1.2130396
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- Koster, L. J. A., Mihailetchi, V. D., Xie, H., & Blom, P. W. M. (2005). Origin of the light intensity dependence of the short-circuit current of polymer/fullerene solar cells. Applied Physics Letters. https://doi.org/10.1063/1.2130396
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
