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Recombination in Annealed and Nonannealed Polythiophene/Fullerene Solar Cells: Transient Photovoltage Studies versus Numerical Modeling
Abstract
Transient photovoltage and differential charging have been used to measure the charge density and recombination rate in polymer solar cells consisting of regioregular poly(3-hexythiophene) (P3HT) blended with 1-(3-methoxycarbonyl)propyl-1-phenyl-[6,6]-methano fullerene (PCBM). Charge dynamics were found to be over an order of magnitude faster in nonannealed cells as compared to annealed cells. Numerical modeling demonstrated that physically reasonable changes in the domain size and phase segregation reproduced the change seen in the experimental results and thus suggests that measurements of recombination rate can be used as an indicator of the degree of intermixing of donor and acceptor in bulk heterojunction solar cells. Through calculation of the recombination flux at both open circuit and short circuit conditions, we determine that the increase in rate constant observed for the nonannealed devices is sufficient to explain the differences in device performance.
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Cited by
Guan, S., Li, Y., Xu, C., Yin, N., Xu, C., Wang, C., Wang, M., Xu, Y., Chen, Q., Wang, D., et al. (2024) · Advanced Materials · doi:10.1002/adma.202400342 · Cited by 650
Zhu, L., Zhang, M., Zhou, G., Hao, T., Xu, J., Wang, J., Qiu, C., Prine, N., Ali, J., Feng, W., et al. (2020) · Advanced Energy Materials · doi:10.1002/aenm.201904234 · Cited by 585
Su, M., Kuo, C., Yuan, M., Jeng, U., Su, C., & Wei, K. (2011) · Advanced Materials · doi:10.1002/adma.201101274 · Cited by 473
Small is Powerful: Recent Progress in Solution‐Processed Small Molecule Solar Cells
Collins, S. D., Ran, N. A., Heiber, M. C., & Nguyen, T. (2017) · Advanced Energy Materials · doi:10.1002/aenm.201602242 · Cited by 414
Albrecht, S., Janietz, S., Schindler, W., Frisch, J., Kurpiers, J., Kniepert, J., Inal, S., Pingel, P., Fostiropoulos, K., Koch, N., et al. (2012) · Journal of the American Chemical Society · doi:10.1021/ja305039j · Cited by 374
Metadata
- Authors
- Hamilton, R., Shuttle, C. G., O’Regan, B., Hammant, T. C., Nelson, J., & Durrant, J. R.
- Venue
- The Journal of Physical Chemistry Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-04-16
- Volume
- 1
- Issue
- 9
- Pages
- 1432-1436
- ISSN
- 1948-7185 (ISSN-L)
- OpenAlex
- W2016708483
- Cited by
- 177
- References
- 0
- FWCI
- 11.21
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Recombination in Annealed and Nonannealed Polythiophene/Fullerene Solar Cells: Transient Photovoltage Studies versus Numerical Modeling. https://app.cochat.ai/papers/10.1021/jz1001506
- The paper
- Hamilton, R., Shuttle, C. G., O’Regan, B., Hammant, T. C., Nelson, J., & Durrant, J. R. (2010). Recombination in Annealed and Nonannealed Polythiophene/Fullerene Solar Cells: Transient Photovoltage Studies versus Numerical Modeling. The Journal of Physical Chemistry Letters. https://doi.org/10.1021/jz1001506
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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