The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Brightly Luminescent and Color-Tunable Colloidal CH3NH3PbX3 (X = Br, I, Cl) Quantum Dots: Potential Alternatives for Display Technology
Abstract
Organometal halide perovskites are inexpensive materials with desirable characteristics of color-tunable and narrow-band emissions for lighting and display technology, but they suffer from low photoluminescence quantum yields at low excitation fluencies. Here we developed a ligand-assisted reprecipitation strategy to fabricate brightly luminescent and color-tunable colloidal CH3NH3PbX3 (X = Br, I, Cl) quantum dots with absolute quantum yield up to 70% at room temperature and low excitation fluencies. To illustrate the photoluminescence enhancements in these quantum dots, we conducted comprehensive composition and surface characterizations and determined the time- and temperature-dependent photoluminescence spectra. Comparisons between small-sized CH3NH3PbBr3 quantum dots (average diameter 3.3 nm) and corresponding micrometer-sized bulk particles (2-8 μm) suggest that the intense increased photoluminescence quantum yield originates from the increase of exciton binding energy due to size reduction as well as proper chemical passivations of the Br-rich surface. We further demonstrated wide-color gamut white-light-emitting diodes using green emissive CH3NH3PbBr3 quantum dots and red emissive K2SiF6:Mn(4+) as color converters, providing enhanced color quality for display technology. Moreover, colloidal CH3NH3PbX3 quantum dots are expected to exhibit interesting nanoscale excitonic properties and also have other potential applications in lasers, electroluminescence devices, and optical sensors.
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Cites
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
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Colloidal nanocrystal synthesis and the organic–inorganic interface
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Cited by
Akkerman, Q. A., D’Innocenzo, V., Accornero, S., Scarpellini, A., Petrozza, A., Prato, M., & Manna, L. (2015) · Journal of the American Chemical Society · doi:10.1021/jacs.5b05602 · Cited by 2,197
CsPbxMn1–xCl3 Perovskite Quantum Dots with High Mn Substitution Ratio
Liu, H., Wu, Z., Shao, J., Yao, D., Gao, H., Liu, Y., Yu, W., Zhang, H., & Yang, B. (2017) · ACS Nano · doi:10.1021/acsnano.6b08747 · Cited by 587
Low‐Dimensional Metal Halide Perovskite Photodetectors
Wang, H., Li, S., Liu, X., Shi, Z., Fang, X., & He, J. (2021) · Advanced Materials · doi:10.1002/adma.202003309 · Cited by 574
Efficient Luminescence from Perovskite Quantum Dot Solids
Kim, Y., Yassitepe, E., Voznyy, O., Comin, R., Walters, G., Gong, X., Kanjanaboos, P., Nogueira, A. F., & Sargent, E. H. (2015) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.5b09084 · Cited by 555
Leng, M., Yang, Y., Zeng, K., Chen, Z., Tan, Z., Li, S., Li, J., Xu, B., Li, D., Hautzinger, M. P., et al. (2018) · Advanced Functional Materials · doi:10.1002/adfm.201704446 · Cited by 533
Metadata
- Authors
- Zhang, F., Zhong, H., Chen, C., Wu, X.-G., Hu, X., Huang, H., Han, J., Zou, B., & Dong, Y.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-04-01
- Volume
- 9
- Issue
- 4
- Pages
- 4533-4542
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2317036840
- Cited by
- 2,431
- References
- 5
- FWCI
- 108.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhang, F., Zhong, H., Chen, C., Wu, X.-G., Hu, X., Huang, H., Han, J., Zou, B., & Dong, Y. (2015). Brightly Luminescent and Color-Tunable Colloidal CH3NH3PbX3 (X = Br, I, Cl) Quantum Dots: Potential Alternatives for Display Technology. ACS Nano. https://doi.org/10.1021/acsnano.5b01154
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