Blue Emitting Single Crystalline Assembly of Metal Halide Clusters

Chenkun Zhou, Haoran Lin, Michael Worku, Jennifer Neu, Yan Zhou, Yu Tian, Sujin Lee, Peter Djurovich, Theo Siegrist, Biwu Ma

Research output: Contribution to journalArticlepeer-review

192 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)13181-13184
Number of pages4
JournalJournal of the American Chemical Society
Volume140
Issue number41
DOIs
StatePublished - Oct 17 2018
Externally publishedYes

Funding

The work is supported by the National Science Foundation (DMR-1709116) and the Air Force Office of Scientific Research (AFOSR) (17RT0906). J.N. acknowledges support from NSF-DMR-1606952. Part of the work was carried out at the National High Magnetic Field Laboratory which is supported by the National Science Foundation under NSF-DMR-1644779 and the State of Florida. The authors thank Dr. Kenneth Hanson at FSU for the help with emission measurements and Dr. Michael Shatruk for helpful discussions on the single crystal structure.

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