Low-dimensional iodide perovskite nanocrystals enable efficient red emission
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Low-dimensional iodide perovskite nanocrystals enable efficient red emission

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Low-dimensional iodide perovskite nanocrystals enable efficient red emission

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dc.contributor.author Martínez Sarti, Laura
dc.contributor.author Jo, Seung Hyeon
dc.contributor.author Kim, Young-Hoon
dc.contributor.author Sessolo, Michele
dc.contributor.author Palazón Huet, Francisco
dc.contributor.author Lee, Tae-Woo
dc.contributor.author Bolink, Henk
dc.date.accessioned 2020-02-24T15:00:20Z
dc.date.available 2020-02-24T15:00:20Z
dc.date.issued 2019
dc.identifier.uri https://hdl.handle.net/10550/73220
dc.description.abstract We report herein a simple ligand-assisted reprecipitation method at room temperature to synthesize mixed-cation hybrid organic-inorganic perovskite nanocrystals with low structural dimensionality. The emission wavelength of iodide-based perovskites is thus tuned from the near-infrared to the red part of the visible spectrum. While this is mostly achieved in the literature by addition of bromide, we demonstrate here a controllable blueshift of the band gap by varying the chain length of the alkylammonium ligands. Furthermore, an antisolvent washing step was found to be crucial to purify the samples and obtain single-peak photoluminescence with a narrow linewidth. The so-formed nanocrystals exhibit high and stable photoluminescence quantum yields exceeding 90% over 500 hours, making these materials ideal for light-emitting applications.
dc.language.iso eng
dc.relation.ispartof Nanoscale, 2019, vol. 11, p. 12793-12797
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Martínez Sarti, Laura Jo, Seung Hyeon Kim, Young-Hoon Sessolo, Michele Palazón Huet, Francisco Lee, Tae-Woo Bolink, Henk 2019 Low-dimensional iodide perovskite nanocrystals enable efficient red emission Nanoscale 11 12793 12797
dc.subject Materials
dc.subject Nanotecnologia
dc.title Low-dimensional iodide perovskite nanocrystals enable efficient red emission
dc.type info:eu-repo/semantics/article
dc.date.updated 2020-02-24T15:00:20Z
dc.identifier.doi https://doi.org/10.1039/C9NR04520A
dc.identifier.idgrec 133799

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