The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Improved Performance and Stability of All‐Inorganic Perovskite Light‐Emitting Diodes by Antisolvent Vapor Treatment
Abstract
All‐inorganic perovskite light‐emitting diodes (LEDs) reveal efficient luminescence with high color purity, but their modest brightness and poor stability are still critical drawbacks. Here, the luminescent efficiency and the stability of perovskite LEDs (PeLEDs) are boosted by antisolvent vapor treatment of CsPbBr 3 embedded in a dielectric polymer matrix of polyethylene oxide (PEO). A unique method is developed to obtain high quality CsPbBr 3 emitting layers with low defects by controlling their grain sizes. CsPbBr 3 in PEO matrix is post‐treated with antisolvent of chloroform (CF), leading to microcrystals with a size of ≈5 µm along the in‐plane direction with active emitting composite of 90%. A device based on CF post‐treatment (CsPbBr 3‐PEO‐CF) film displays a brightness of up to 51890 cd m−2 with an external quantum efficiency of 4.76%. CsPbBr 3‐PEO‐CF PeLED still maintains 82% of its initial efficiency after 80 h continuous operation in ambient air, which indicates relatively good device stability. This work highlights that film quality is not only key to promoting fluorescence in CsPbBr 3, but also to achieving higher performance PeLEDs.
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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
Deschler, F., Price, M., Pathak, S., Klintberg, L. E., Jarausch, D.-D., Higler, R., Hüttner, S., Leijtens, T., Stranks, S. D., Snaith, H. J., et al. (2014) · The Journal of Physical Chemistry Letters · doi:10.1021/jz5005285 · Cited by 1,753
Correlated electron–hole plasma in organometal perovskites
Saba, M., Cadelano, M., Marongiu, D., Chen, F., Sarritzu, V., Sestu, N., Figus, C., Aresti, M., Piras, R., Geddo Lehmann, A., et al. (2014) · Nature Communications · doi:10.1038/ncomms6049 · Cited by 603
Cited by
Wei, Y., Cheng, Z., & Lin, J. (2019) · Chemical Society Reviews · doi:10.1039/c8cs00740c · Cited by 1,206
Improving the Stability of Metal Halide Perovskite Materials and Light‐Emitting Diodes
Cho, H., Kim, Y., Wolf, C., Lee, H., & Lee, T. (2018) · Advanced Materials · doi:10.1002/adma.201704587 · Cited by 470
Sun, J., Rabouw, F. T., Yang, X., Huang, X., Jing, X., Ye, S., & Zhang, Q. (2017) · Advanced Functional Materials · doi:10.1002/adfm.201704371 · Cited by 267
Ellipsometric study of the complex optical constants of a CsPbBr 3 perovskite thin film
Zhao, M., Shi, Y., Dai, J., & Lian, J. (2018) · Journal of Materials Chemistry C · doi:10.1039/c8tc03222j · Cited by 98
Metadata
- Authors
- Wu, C., Zou, Y., Wu, T., Ban, M., Pecunia, V., Han, Y., Liu, Q., Song, T., Duhm, S., & Sun, B.
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2017-05-15
- Volume
- 27
- Issue
- 28
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W2614134486
- Cited by
- 263
- References
- 3
- FWCI
- 15.10
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wu, C., Zou, Y., Wu, T., Ban, M., Pecunia, V., Han, Y., Liu, Q., Song, T., Duhm, S., & Sun, B. (2017). Improved Performance and Stability of All‐Inorganic Perovskite Light‐Emitting Diodes by Antisolvent Vapor Treatment. Advanced Functional Materials. https://doi.org/10.1002/adfm.201700338
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