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Hole Transport in Poly(phenylene vinylene)/Methanofullerene Bulk‐Heterojunction Solar Cells
Open accessAbstract
A fundamental limitation of the photocurrent of solar cells based on a blend of poly(2‐methoxy‐5‐(3′,7′‐dimethyloctyloxy)‐p‐phenylene vinylene) (MDMO‐PPV) and [6,6]‐phenyl C 61‐butyric acid methyl ester (PCBM) is caused by the mobility of the slowest charge‐carrier species, the holes in the MDMO‐PPV. In order to allow the experimentally observed photocurrents electrostatically, a hole mobility of at least 10–8 m 2 V–1 s–1 is required, which exceeds the observed hole mobility in pristine MDMO‐PPV by more than two orders of magnitude. However, from space‐charge‐limited conduction, admittance spectroscopy, and transient electroluminescence measurements, we found a hole mobility of 2 × 10–8 m 2 V–1 s–1 for the MDMO‐PPV phase in the blend at room temperature. Consequently, the charge‐carrier transport in a MDMO‐PPV:PCBM‐based solar cell is much more balanced than previously assumed, which is a necessary requirement for the reported high fill factors of above 50 %.
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Citations
Cited by
Conjugated Polymer-Based Organic Solar Cells
Günes, S., Neugebauer, H., & Sariciftci, N. S. (2007) · Chemical Reviews · doi:10.1021/cr050149z · Cited by 6,279
Mihailetchi, V. D., Xie, H. X., de Boer, B., Koster, L. J. A., & Blom, P. W. M. (2006) · Advanced Functional Materials · doi:10.1002/adfm.200500420 · Cited by 1,283
Self-citationMihailetchi, V. D., Koster, L. J. A., Blom, P. W. M., Melzer, C., de Boer, B., van Duren, J. K. J., & Janssen, R. A. J. (2005) · Advanced Functional Materials · doi:10.1002/adfm.200400345 · Cited by 396
Self-citationBao, S., Yang, H., Fan, H., Zhang, J., Wei, Z., Cui, C., & Li, Y. (2021) · Advanced Materials · doi:10.1002/adma.202105301 · Cited by 325
Dastoor, P. C., McNeill, C. R., Frohne, H., Foster, C. J., Dean, B., Fell, C. J., Belcher, W. J., Campbell, W. M., Officer, D. L., Blake, I. M., et al. (2007) · The Journal of Physical Chemistry C · doi:10.1021/jp0748664 · Cited by 77
Metadata
- Authors
- Melzer, C., Koop, E. J., Mihailetchi, V. D., & Blom, P. W. M.
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2004-09
- Volume
- 14
- Issue
- 9
- Pages
- 865-870
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W2147728891
- Cited by
- 408
- References
- 0
- FWCI
- 22.89
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Melzer, C., Koop, E. J., Mihailetchi, V. D., & Blom, P. W. M. (2004). Hole Transport in Poly(phenylene vinylene)/Methanofullerene Bulk‐Heterojunction Solar Cells. Advanced Functional Materials. https://doi.org/10.1002/adfm.200305156
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