The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Efficient and High-Color-Purity Light-Emitting Diodes Based on In Situ Grown Films of CsPbX3 (X = Br, I) Nanoplates with Controlled Thicknesses
Abstract
We report a facile solution-based approach to the in situ growth of perovskite films consisting of monolayers of CsPbBr 3 nanoplates passivated by bulky phenylbutylammonium (PBA) cations, that is, two-dimensional layered PBA 2 (CsPbBr 3 ) n −1 PbBr 4 perovskites. Optimizing film formation processes leads to layered perovskites with controlled n values in the range of 12–16. The layered perovskite emitters show quantum-confined band gap energies with a narrow distribution, suggesting the formation of thickness-controlled quantum-well (TCQW) structures. The TCQW CsPbBr 3 films exhibit smooth surface features, narrow emission line widths, low trap densities, and high room-temperature photoluminance quantum yields, resulting in high-color-purity green light-emitting diodes (LEDs) with remarkably high external quantum efficiencies (EQEs) of up to 10.4%. The solution-based approach is extended to the preparation of TCQW CsPbI 3 films for high-color-purity red perovskite LEDs with high EQEs of up to 7.3%.
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Cites
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
Room-Temperature Near-Infrared High-Q Perovskite Whispering-Gallery Planar Nanolasers
Zhang, Q., Ha, S. T., Liu, X., Sum, T. C., & Xiong, Q. (2014) · Nano Letters · doi:10.1021/nl503057g · Cited by 816
Cited by
Metal halide perovskites for light-emitting diodes
Liu, X.-K., Xu, W., Bai, S., Jin, Y., Wang, J., Friend, R. H., & Gao, F. (2021) · Nature Materials · doi:10.1038/s41563-020-0784-7 · Cited by 1,515
Self-citationBi, C., Wang, S., Li, Q., Kershaw, S. V., Tian, J., & Rogach, A. L. (2019) · The Journal of Physical Chemistry Letters · doi:10.1021/acs.jpclett.9b00290 · Cited by 367
Emerging Self‐Emissive Technologies for Flexible Displays
Zhang, D., Huang, T., & Duan, L. (2020) · Advanced Materials · doi:10.1002/adma.201902391 · Cited by 316
Han, D., Imran, M., Zhang, M., Chang, S., Wu, X.-G., Zhang, X., Tang, J., Wang, M., Ali, S., Li, X., et al. (2018) · ACS Nano · doi:10.1021/acsnano.8b05172 · Cited by 298
Metadata
- Authors
- Si, J., Liu, Y., He, Z., Du, H., Du, K., Chen, D., Li, J., Xu, M., Tian, H., He, H., Di, D., Lin, C., Cheng, Y., Wang, J., & Jin, Y.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-10-24
- Volume
- 11
- Issue
- 11
- Pages
- 11100-11107
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2767146592
- Cited by
- 208
- References
- 2
- FWCI
- 12.42
- Type
- journal article
- Language
- en
- Open access
- closed
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