Blue Emitting Single Crystalline Assembly of Metal Halide Clusters

The rich chemistry of organic–inorganic metal halide hybrids has enabled the development of a variety of crystalline structures with controlled morphological and molecular dimensionalities. Here we report for the first time a single crystalline assembly of metal halide clusters, (C9NH20)7(PbCl4)­Pb3...

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Veröffentlicht in:Journal of the American Chemical Society 2018-10, Vol.140 (41), p.13181-13184
Hauptverfasser: Zhou, Chenkun, Lin, Haoran, Worku, Michael, Neu, Jennifer, Zhou, Yan, Tian, Yu, Lee, Sujin, Djurovich, Peter, Siegrist, Theo, Ma, Biwu
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Sprache:eng
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Zusammenfassung:The rich chemistry of organic–inorganic metal halide hybrids has enabled the development of a variety of crystalline structures with controlled morphological and molecular dimensionalities. Here we report for the first time a single crystalline assembly of metal halide clusters, (C9NH20)7(PbCl4)­Pb3Cl11, in which lead chloride tetrahedrons (PbCl4 2–) and face-sharing lead chloride trimer clusters (Pb3Cl11 5–) cocrystallize with organic cations (C9NH20 +) to form a periodical zero-dimensional (0D) structure at the molecular level. Blue light emission peaked at 470 nm with a photoluminescence quantum efficiency (PLQE) of around 83% was realized for this single crystalline hybrid material, which is attributed to the individual lead chloride clusters. Our discovery of single crystalline assembly of metal halide clusters paves a new path to functional cluster assemblies with highly tunable structures and remarkable properties.
ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.8b07731