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Near‐Unity Photoluminescence Quantum Efficiency for All CsPbX3 (X=Cl, Br, and I) Perovskite Nanocrystals: A Generic Synthesis Approach
Abstract
In a generic synthesis approach, all three CsPbX 3 (X=Cl, Br and I) perovskite nanocrystals having near unity quantum yields is reported. This has been achieved by injecting the desired amount of preformed alkylammonium halide salts which acted as a dual source providing halide ions and the capping agent to an equimolar amount of non‐halide Pb and Cs precursors in a reaction flask at an optimized reaction temperature. The composition sensitivity of Pb to Cs ratio, high temperature reaction, and injection of ammonium halide remained the key parameters for obtaining the high quantum yields. Details of the reaction process, use of different reagents and setting up the reaction parameters are reported.
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Genesis, challenges and opportunities for colloidal lead halide perovskite nanocrystals
Akkerman, Q. A., Rainò, G., Kovalenko, M. V., & Manna, L. (2018) · Nature Materials · doi:10.1038/s41563-018-0018-4 · Cited by 2,287
Lead Halide Perovskite Nanocrystals in the Research Spotlight: Stability and Defect Tolerance
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Colloidal CsPbBr3 Perovskite Nanocrystals: Luminescence beyond Traditional Quantum Dots
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Essentially Trap-Free CsPbBr3 Colloidal Nanocrystals by Postsynthetic Thiocyanate Surface Treatment
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Cited by
Bi3+‐Er3+ and Bi3+‐Yb3+ Codoped Cs2AgInCl6 Double Perovskite Near‐Infrared Emitters
Arfin, H., Kaur, J., Sheikh, T., Chakraborty, S., & Nag, A. (2020) · Angewandte Chemie International Edition · doi:10.1002/anie.202002721 · Cited by 359
Direct laser writing on halide perovskites: from mechanisms to applications
Sheng, Y., Wen, X., Jia, B., & Gan, Z. (2024) · Light: Advanced Manufacturing · doi:10.37188/lam.2024.004 · Cited by 22
Metadata
- Authors
- Dutta, A., Behera, R. K., Pal, P., Baitalik, S., & Pradhan, N.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2019-03-08
- Volume
- 58
- Issue
- 17
- Pages
- 5552-5556
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2914326597
- Cited by
- 361
- References
- 40
- FWCI
- 18.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Dutta, A., Behera, R. K., Pal, P., Baitalik, S., & Pradhan, N. (2019). Near‐Unity Photoluminescence Quantum Efficiency for All CsPbX3 (X=Cl, Br, and I) Perovskite Nanocrystals: A Generic Synthesis Approach. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201900374
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