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Enhanced Photocurrent Spectral Response in Low‐Bandgap Polyfluorene and C70‐Derivative‐Based Solar Cells
Abstract
Plastic solar cells have been fabricated using a low‐bandgap alternating copolymer of fluorene and a donor–acceptor–donor moiety (APFO‐Green1), blended with 3′‐(3,5‐bis‐trifluoromethylphenyl)‐1′‐(4‐nitrophenyl)pyrazolino[70]fullerene (BTPF70) as electron acceptor. The polymer shows optical absorption in two wavelength ranges, λ < 500 nm and 600 < λ < 1000 nm. The BTPF70 absorbs light at λ < 700 nm. A broad photocurrent spectral response in the wavelength range 300 < λ < 1000 nm is obtained in solar cells. A photocurrent density of 3.4 mA cm–2, open‐circuit voltage of 0.58 V, and power‐conversion efficiency of 0.7 % are achieved under illumination of AM1.5 (1000 W m–2) from a solar simulator. Synthesis of BTPF70 is presented. Photoluminescence quenching and electrochemical studies are used to discuss photoinduced charge transfer.
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Citations
Cited by
Polymer‐Fullerene Bulk‐Heterojunction Solar Cells
Dennler, G., Scharber, M. C., & Brabec, C. J. (2009) · Advanced Materials · doi:10.1002/adma.200801283 · Cited by 3,114
Polymer–Fullerene Bulk‐Heterojunction Solar Cells
Brabec, C. J., Gowrisanker, S., Halls, J. J. M., Laird, D., Jia, S., & Williams, S. P. (2010) · Advanced Materials · doi:10.1002/adma.200903697 · Cited by 2,621
Low band gap polymers for organic photovoltaics
BUNDGAARD, E., & KREBS, F. (2007) · Solar Energy Materials and Solar Cells · doi:10.1016/j.solmat.2007.01.015 · Cited by 1,346
Organic Photovoltaics over Three Decades
Inganäs, O. (2018) · Advanced Materials · doi:10.1002/adma.201800388 · Cited by 708
Self-citationMetallated conjugated polymers as a new avenue towards high-efficiency polymer solar cells
Wong, W.-Y., Wang, X.-Z., He, Z., Djurišić, A. B., Yip, C.-T., Cheung, K.-Y., Wang, H., Mak, C. S. K., & Chan, W.-K. (2007) · Nature Materials · doi:10.1038/nmat1909 · Cited by 567
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Metadata
- Authors
- Wang, X., Perzon, E., Oswald, F., Langa, F., Admassie, S., Andersson, M. R., & Inganäs, O.
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2005-08-16
- Volume
- 15
- Issue
- 10
- Pages
- 1665-1670
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W2088805486
- Cited by
- 167
- References
- 0
- FWCI
- 17.48
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, X., Perzon, E., Oswald, F., Langa, F., Admassie, S., Andersson, M. R., & Inganäs, O. (2005). Enhanced Photocurrent Spectral Response in Low‐Bandgap Polyfluorene and C70‐Derivative‐Based Solar Cells. Advanced Functional Materials. https://doi.org/10.1002/adfm.200500114
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