The DOI matches its Crossref record; 86 of the 86 references it cites were found in a registry or an index.
Rationalizing and Controlling the Surface Structure and Electronic Passivation of Cesium Lead Halide Nanocrystals
Open accessAbstract
Abstract Colloidal lead halide perovskite nanocrystals (NCs) have recently emerged as versatile photonic sources. Their processing and luminescent properties are challenged by the lability of their surfaces, i.e., the interface of the NC core and the ligand shell. On the example of CsPbBr3 NCs, we model the nanocrystal surface structure and its effect on the emergence of trap states using density functional theory. We rationalize the typical observation of a degraded luminescence upon aging or the luminescence recovery upon postsynthesis surface treatments. The conclusions are corroborated by the elemental analysis. We then propose a strategy for healing the surface trap states and for improving the colloidal stability by the combined treatment with didodecyldimethylammonium bromide and lead bromide and validate this approach experimentally. This simple procedure results in robust colloids, which are highly pure and exhibit high photoluminescence quantum yields of up to 95–98%, retained even after three to four rounds of washing.
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Cites
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Cited by
Surface Chemistry Engineering of Perovskite Quantum Dots: Strategies, Applications, and Perspectives
Bai, Y., Hao, M., Ding, S., Chen, P., & Wang, L. (2022) · Advanced Materials · doi:10.1002/adma.202105958 · Cited by 394
Ye, J., Byranvand, M. M., Martínez, C. O., Hoye, R. L. Z., Saliba, M., & Polavarapu, L. (2021) · Angewandte Chemie International Edition · doi:10.1002/anie.202102360 · Cited by 389
Dutta, A., Behera, R. K., Pal, P., Baitalik, S., & Pradhan, N. (2019) · Angewandte Chemie International Edition · doi:10.1002/anie.201900374 · Cited by 361
Metadata
- Authors
- Bodnarchuk, M. I., Boehme, S. C., ten Brinck, S., Bernasconi, C., Shynkarenko, Y., Krieg, F., Widmer, R., Aeschlimann, B., Günther, D., Kovalenko, M. V., & Infante, I.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-11-27
- Volume
- 4
- Issue
- 1
- Pages
- 63-74
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2902605127
- Cited by
- 466
- References
- 86
- FWCI
- 15.15
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Bodnarchuk, M. I., Boehme, S. C., ten Brinck, S., Bernasconi, C., Shynkarenko, Y., Krieg, F., Widmer, R., Aeschlimann, B., Günther, D., Kovalenko, M. V., & Infante, I. (2019). Rationalizing and Controlling the Surface Structure and Electronic Passivation of Cesium Lead Halide Nanocrystals. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.8b01669
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