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Bulk Heterojunction Photovoltaic Active Layers via Bilayer Interdiffusion
Abstract
To better understand the physics of the photoactive layer in the organic photovoltaic devices, it is necessary to gain a quantitative understanding of the morphology and the manner in which it develops. A key element in the kinetics associated with the structure development is the interdiffusion of the components. To that end we used P3HT/PCBM bilayers as a model to investigate the interdiffusion of the components and its role in the development of the morphology. A detailed description of the diffusion behavior and the morphology developed from a layer of P3HT in contact with a layer of PCBM during thermal annealing is given. Amorphous P3HT and PCBM are shown to be highly miscible and PCBM can penetrate into the P3HT layer through the P3HT amorphous region and form the bulk heterojunction structure within a few seconds of annealing at 150 °C. The results indicated that one phase is an ordered P3HT domain and the other phase is the mixture of amorphous P3HT and PCBM which is not consistent with a phase separation of the components by a spinodal decomposition mechanism.
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Cites
Markov, D. E., Amsterdam, E., Blom, P. W. M., Sieval, A. B., & Hummelen, J. C. (2005) · The Journal of Physical Chemistry A · doi:10.1021/jp0509663 · Cited by 432
Cited by
Li, G., Zhu, R., & Yang, Y. (2012) · Nature Photonics · doi:10.1038/nphoton.2012.11 · Cited by 4,414
Sun, S., Salim, T., Mathews, N., Duchamp, M., Boothroyd, C., Xing, G., Sum, T. C., & Lam, Y. M. (2014) · Energy Environ. Sci. · doi:10.1039/c3ee43161d · Cited by 1,109
Müller‐Buschbaum, P. (2014) · Advanced Materials · doi:10.1002/adma.201304187 · Cited by 730
Collins, B. A., Li, Z., Tumbleston, J. R., Gann, E., McNeill, C. R., & Ade, H. (2013) · Advanced Energy Materials · doi:10.1002/aenm.201200377 · Cited by 649
Morphology characterization in organic and hybrid solar cells
Chen, W., Nikiforov, M. P., & Darling, S. B. (2012) · Energy & Environmental Science · doi:10.1039/c2ee22056c · Cited by 400
Metadata
- Authors
- Chen, D., Liu, F., Wang, C., Nakahara, A., & Russell, T. P.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-05-11
- Volume
- 11
- Issue
- 5
- Pages
- 2071-2078
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2060368098
- Cited by
- 291
- References
- 1
- FWCI
- 34.09
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chen, D., Liu, F., Wang, C., Nakahara, A., & Russell, T. P. (2011). Bulk Heterojunction Photovoltaic Active Layers via Bilayer Interdiffusion. Nano Letters. https://doi.org/10.1021/nl200552r
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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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