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High efficiency planar-type perovskite solar cells with negligible hysteresis using EDTA-complexed SnO2
Open accessAbstract
Even though the mesoporous-type perovskite solar cell (PSC) is known for high efficiency, its planar-type counterpart exhibits lower efficiency and hysteretic response. Herein, we report success in suppressing hysteresis and record efficiency for planar-type devices using EDTA-complexed tin oxide (SnO 2) electron-transport layer. The Fermi level of EDTA-complexed SnO 2 is better matched with the conduction band of perovskite, leading to high open-circuit voltage. Its electron mobility is about three times larger than that of the SnO 2. The record power conversion efficiency of planar-type PSCs with EDTA-complexed SnO 2 increases to 21.60% (certified at 21.52% by Newport) with negligible hysteresis. Meanwhile, the low-temperature processed EDTA-complexed SnO 2 enables 18.28% efficiency for a flexible device. Moreover, the unsealed PSCs with EDTA-complexed SnO 2 degrade only by 8% exposed in an ambient atmosphere after 2880 h, and only by 14% after 120 h under irradiation at 100 mW cm−2.
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Citations
Cited by
Flexible Perovskite Solar Cells
Jung, H. S., Han, G. S., Park, N.-G., & Ko, M. J. (2019) · Joule · doi:10.1016/j.joule.2019.07.023 · Cited by 449
Bifunctional Surface Engineering on SnO2 Reduces Energy Loss in Perovskite Solar Cells
Jung, E. H., Chen, B., Bertens, K., Vafaie, M., Teale, S., Proppe, A., Hou, Y., Zhu, T., Zheng, C., & Sargent, E. H. (2020) · ACS Energy Letters · doi:10.1021/acsenergylett.0c01566 · Cited by 389
Tin Oxide Electron‐Selective Layers for Efficient, Stable, and Scalable Perovskite Solar Cells
Altinkaya, C., Aydin, E., Ugur, E., Isikgor, F. H., Subbiah, A. S., De Bastiani, M., Liu, J., Babayigit, A., Allen, T. G., Laquai, F., et al. (2021) · Advanced Materials · doi:10.1002/adma.202005504 · Cited by 348
Metal Oxide Charge Transport Layers for Efficient and Stable Perovskite Solar Cells
Shin, S. S., Lee, S. J., & Seok, S. I. (2019) · Advanced Functional Materials · doi:10.1002/adfm.201900455 · Cited by 283
Space-charge-limited electron and hole currents in hybrid organic-inorganic perovskites
Sajedi Alvar, M., Blom, P. W. M., & Wetzelaer, G.-J. A. H. (2020) · Nature Communications · doi:10.1038/s41467-020-17868-0 · Cited by 268
Metadata
- Authors
- Yang, D., Yang, R., Wang, K., Wu, C., Zhu, X., Feng, J., Ren, X., Fang, G., Priya, S., & Liu, S.
- Venue
- Nature Communications
- Published
- 2018-08-13
- Volume
- 9
- Issue
- 1
- Pages
- 3239-3239
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2885088646
- Cited by
- 1,401
- References
- 0
- FWCI
- 63.22
- Type
- journal article
- Language
- en
- Open access
- gold
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- Yang, D., Yang, R., Wang, K., Wu, C., Zhu, X., Feng, J., Ren, X., Fang, G., Priya, S., & Liu, S. (2018). High efficiency planar-type perovskite solar cells with negligible hysteresis using EDTA-complexed SnO2. Nature Communications. https://doi.org/10.1038/s41467-018-05760-x
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