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Diffusion engineering of ions and charge carriers for stable efficient perovskite solar cells
Open accessAbstract
Long-term stability is crucial for the future application of perovskite solar cells, a promising low-cost photovoltaic technology that has rapidly advanced in the recent years. Here, we designed a nanostructured carbon layer to suppress the diffusion of ions/molecules within perovskite solar cells, an important degradation process in the device. Furthermore, this nanocarbon layer benefited the diffusion of electron charge carriers to enable a high-energy conversion efficiency. Finally, the efficiency on a perovskite solar cell with an aperture area of 1.02 cm 2, after a thermal aging test at 85 °C for over 500 h, or light soaking for 1,000 h, was stable of over 15% during the entire test. The present diffusion engineering of ions/molecules and photo generated charges paves a way to realizing long-term stable and highly efficient perovskite solar cells.
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Metadata
- Authors
- Bi, E., Chen, H., Xie, F., Wu, Y., Chen, W., Su, Y., Islam, A., Grätzel, M., Yang, X., & Han, L.
- Venue
- Nature Communications
- Published
- 2017-06-12
- Volume
- 8
- Issue
- 1
- Pages
- 15330-15330
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2623930029
- Cited by
- 451
- References
- 32
- FWCI
- 23.16
- Type
- journal article
- Language
- en
- Open access
- gold
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