Incorporation of potassium halides in the mechanosynthesis of inorganic perovskites: feasibility and limitations of ion-replacement and trap passivation

Potassium halides (KX; X = I, Br, or Cl) were incorporated as partial replacements of CsBr in the mechanosynthesis of CsPbBr(3). This led to partial substitution of both monovalent ions forming mixed Cs(1−x)K(x)PbBr(3−y)X(y) perovskites. Longer photoluminescence lifetimes were also observed, possibl...

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Detalles Bibliográficos
Autores principales: El Ajjouri, Yousra, Chirvony, Vladimir S., Sessolo, Michele, Palazon, Francisco, Bolink, Henk J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9091861/
https://www.ncbi.nlm.nih.gov/pubmed/35559307
http://dx.doi.org/10.1039/c8ra08823c
Descripción
Sumario:Potassium halides (KX; X = I, Br, or Cl) were incorporated as partial replacements of CsBr in the mechanosynthesis of CsPbBr(3). This led to partial substitution of both monovalent ions forming mixed Cs(1−x)K(x)PbBr(3−y)X(y) perovskites. Longer photoluminescence lifetimes were also observed, possibly linked to the formation of a non-perovskite KPb(2)X(5) passivating layer.

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