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Asymmetric tandem organic photovoltaic cells with hybrid planar-mixed molecular heterojunctions
Abstract
We demonstrate high-efficiency organic photovoltaic cells by stacking two hybrid planar-mixed molecular heterojunction cells in series. Absorption of incident light is maximized by locating the subcell tuned to absorb long-wavelength light nearest to the transparent anode, and tuning the second subcell closest to the reflecting metal cathode to preferentially absorb short-wavelength solar energy. Using the donor, copper phthalocyanine, and the acceptor, C60, we achieve a maximum power conversion efficiency of ηP=(5.7±0.3)% under 1 sun simulated AM1.5G solar illumination. An open-circuit voltage of VOC⩽1.2V is obtained, doubling that of a single cell. Analytical models suggest that power conversion efficiencies exceeding 6.5% can be obtained by this architecture.
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Citations
Cited by
Small Molecule Organic Semiconductors on the Move: Promises for Future Solar Energy Technology
Mishra, A., & Bäuerle, P. (2012) · Angewandte Chemie International Edition · doi:10.1002/anie.201102326 · Cited by 1,816
Small molecule semiconductors for high-efficiency organic photovoltaics
Lin, Y., Li, Y., & Zhan, X. (2012) · Chemical Society Reviews · doi:10.1039/c2cs15313k · Cited by 1,751
Porphyrins and phthalocyanines in solar photovoltaic cells
Walter, M. G., Rudine, A. B., & Wamser, C. C. (2010) · Journal of Porphyrins and Phthalocyanines · doi:10.1142/s1088424610002689 · Cited by 668
Importance of molecular alignment for organic photovoltaic devices
Xu, Z.-X., Roy, V. A. L., Liu, Z.-T., & Lee, C. S. (2010) · Applied Physics Letters · doi:10.1063/1.3502598 · Cited by 24
Montcada, N. F., Arrechea, S., Molina-Ontoria, A., Aljarilla, A. I., de la Cruz, P., Echegoyen, L., Palomares, E., & Langa, F. (2016) · Organic Electronics · doi:10.1016/j.orgel.2016.09.003 · Cited by 16
Metadata
- Authors
- Xue, J., Uchida, S., Rand, B. P., & Forrest, S. R.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2004-12-06
- Volume
- 85
- Issue
- 23
- Pages
- 5757-5759
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2037828341
- Cited by
- 585
- References
- 0
- FWCI
- 34.01
- Type
- journal article
- Language
- en
- Open access
- closed
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- Xue, J., Uchida, S., Rand, B. P., & Forrest, S. R. (2004). Asymmetric tandem organic photovoltaic cells with hybrid planar-mixed molecular heterojunctions. Applied Physics Letters. https://doi.org/10.1063/1.1829776
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