Low-dimensional non-toxic A3Bi2X9 compounds synthesized by a dry mechanochemical route with tunable visible photoluminescence at room temperature
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Low-dimensional non-toxic A3Bi2X9 compounds synthesized by a dry mechanochemical route with tunable visible photoluminescence at room temperature

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Low-dimensional non-toxic A3Bi2X9 compounds synthesized by a dry mechanochemical route with tunable visible photoluminescence at room temperature

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dc.contributor.author El Ajjouri, Yousra
dc.contributor.author Chirvony, Vladimir S.
dc.contributor.author Vassilyeva, Natalia
dc.contributor.author Sessolo, Michele
dc.contributor.author Palazón Huet, Francisco
dc.contributor.author Bolink, Henk
dc.date.accessioned 2020-02-24T14:43:05Z
dc.date.available 2020-05-09T04:45:05Z
dc.date.issued 2019
dc.identifier.uri https://hdl.handle.net/10550/73219
dc.description.abstract We have synthesized fifteen inorganic and hybrid organic-inorganic non-toxic A3Bi2X9 compounds (A = K+, Rb+, Cs+, CH3NH3+ and HC(NH2)2+; X = I−, Br−, Cl−) through dry mechanochemistry. We demonstrate that this synthetic method is very well suited to prepare compounds from poorly soluble precursors, allowing thus the preparation of so far unreported compounds. X-ray diffraction analysis demonstrates the high crystallinity of the so-formed ternary bismuth halides. Furthermore, we show that, through substitution of the A-cation and X-anion, the bandgap of these compounds can be tuned to absorb throughout the whole visible spectrum. As-prepared powders of Cs3Bi2Br9 and Cs3Bi2I9 without any passivating agents show room-temperature photoluminescence covering the visible spectrum from 450 nm to 800 nm, making them especially promising for white-light emission.
dc.language.iso eng
dc.relation.ispartof Journal Of Materials Chemistry C, 2019, vol. 7, p. 6236-6240
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source El Ajjouri, Yousra Chirvony, Vladimir S. Vassilyeva, Natalia Sessolo, Michele Palazón Huet, Francisco Bolink, Henk 2019 Low-dimensional non-toxic A3Bi2X9 compounds synthesized by a dry mechanochemical route with tunable visible photoluminescence at room temperature Journal Of Materials Chemistry C 7 6236 6240
dc.subject Materials
dc.subject Química
dc.title Low-dimensional non-toxic A3Bi2X9 compounds synthesized by a dry mechanochemical route with tunable visible photoluminescence at room temperature
dc.type info:eu-repo/semantics/article
dc.date.updated 2020-02-24T14:43:06Z
dc.identifier.doi https://doi.org/10.1039/C9TC01765H
dc.identifier.idgrec 133795
dc.embargo.terms 1 year

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