Synthesis and Characterization of Multiple-Cation Rb(MAFA)PbI(3) Perovskite Single Crystals

We synthesized multiple-cation Rb(MAFA)PbI(3) perovskite single crystals for the first time. The effect of Rb(+) substitution was systemically investigated, and the addition of 1.5 M 5% RbI was the optimum condition to obtain high-quality Rb(MAFA)PbI(3) single crystals. Lattice shrinkage occurred in...

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Detalles Bibliográficos
Autores principales: Kim, Hyojung, Byun, Hye Ryung, Jeong, Mun Seok
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6376001/
https://www.ncbi.nlm.nih.gov/pubmed/30765856
http://dx.doi.org/10.1038/s41598-019-38947-3
Descripción
Sumario:We synthesized multiple-cation Rb(MAFA)PbI(3) perovskite single crystals for the first time. The effect of Rb(+) substitution was systemically investigated, and the addition of 1.5 M 5% RbI was the optimum condition to obtain high-quality Rb(MAFA)PbI(3) single crystals. Lattice shrinkage occurred in the Rb(MAFA)PbI(3) single crystal because of the small ionic radius of Rb(+), resulting in blue-shifted absorption and photoluminescence (PL) peaks. The 1.5 M 5% RbI-added (MAFA)PbI(3) single crystal showed the longest carrier lifetime of 18.35 ns, exhibiting the highest photoresponse than other crystals. We believe that this work will provide a basic insight into the mixed-cation perovskite single crystals for the future optoelectronic applications.

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