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Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss
Abstract
Operating in wet conditions: The high efficiency of the complex organic molecule Spiro-OMeTAD as a hole-transporting material for perovskite solar cells requires the use of hygroscopic dopants that decrease stability. Jeong et al. synthesized hydrophobic fluorinated analogs of Spiro-OMeTAD as hole-transporting materials that have favorable shifting of the electronic state for hole extraction and used them to fabricate perovskite solar cells. A champion device had a certified power conversion efficiency of 24.8% and an open-circuit voltage near the Shockley-Queisser limit. These devices could maintain more than 87% of the original power conversion efficiency under 50% relative humidity for more than 500 hours. Science , this issue p. 1615
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Metadata
- Authors
- Jeong, M., Choi, I. W., Go, E. M., Cho, Y., Kim, M., Lee, B., Jeong, S., Jo, Y., Choi, H. W., Lee, J., Bae, J.-H., Kwak, S. K., Kim, D. S., & Yang, C.
- Venue
- Science
- Published
- 2020-09-25
- Volume
- 369
- Issue
- 6511
- Pages
- 1615-1620
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W3088739094
- Cited by
- 1,517
- References
- 50
- FWCI
- 92.24
- Type
- journal article
- Language
- en
- Open access
- closed
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