The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Spontaneous Passivation of Hybrid Perovskite by Sodium Ions from Glass Substrates: Mysterious Enhancement of Device Efficiency Revealed
Open accessAbstract
The efficiency of a solar cell generally decreases over time due to degradation of the devices. Here we report a spontaneous increase of device efficiency for organic–inorganic hybrid perovskite (OIHP) solar cells after a period of storage that is speculated to be related to the sodium ions (Na + ) diffused from the substrate. The efficiency of a p–i–n planar heterojunction structure device rises from 18.8 to 20.2% after 24 h of storage in nitrogen. The increased efficiency can be explained by the prolonged carrier lifetime and reduced trap density in the OIHP films. The expected contribution by Na + in defect passivation has been evidenced by studying the evolution of the film’s photoluminescence (PL) lifetime, trap density, and device efficiency over storage duration on varied substrates that either contain Na + or do not. The passivation effect of Na + is further identified by the improved PL lifetime observed in the OIHP film made on a silicon substrate with intentionally added Na + .
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Cites
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
Jeon, N. J., Noh, J. H., Kim, Y. C., Yang, W. S., Ryu, S., & Seok, S. I. (2014) · Nature Materials · doi:10.1038/nmat4014 · Cited by 6,723
Impact of microstructure on local carrier lifetime in perovskite solar cells
de Quilettes, D. W., Vorpahl, S. M., Stranks, S. D., Nagaoka, H., Eperon, G. E., Ziffer, M. E., Snaith, H. J., & Ginger, D. S. (2015) · Science · doi:10.1126/science.aaa5333 · Cited by 2,198
Cited by
Synthetic Approaches for Halide Perovskite Thin Films
Dunlap-Shohl, W. A., Zhou, Y., Padture, N. P., & Mitzi, D. B. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00318 · Cited by 631
Rationalization of passivation strategies toward high-performance perovskite solar cells
Zhang, Z., Qiao, L., Meng, K., Long, R., Chen, G., & Gao, P. (2023) · Chemical Society Reviews · doi:10.1039/d2cs00217e · Cited by 357
Jung, H. J., Kim, D., Kim, S., Park, J., Dravid, V. P., & Shin, B. (2018) · Advanced Materials · doi:10.1002/adma.201802769 · Cited by 122
Qiu, M., Li, W., Luo, Y., Zhao, C., Zhao, Z., & Mai, W. (2025) · Advanced Functional Materials · doi:10.1002/adfm.202418064 · Cited by 15
Metadata
- Authors
- Bi, C., Zheng, X., Chen, B., Wei, H., & Huang, J.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-05-17
- Volume
- 2
- Issue
- 6
- Pages
- 1400-1406
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2616163260
- Cited by
- 195
- References
- 2
- FWCI
- 6.27
- Type
- journal article
- Language
- en
- Open access
- green
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- Bi, C., Zheng, X., Chen, B., Wei, H., & Huang, J. (2017). Spontaneous Passivation of Hybrid Perovskite by Sodium Ions from Glass Substrates: Mysterious Enhancement of Device Efficiency Revealed. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.7b00356
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