Abstract
Bulk assemblies of zero-dimensional (0D) metal halides with exceptional structural versatility have enabled the development of a number of highly efficient emitters with tunable photophysical properties. Here, we report a novel single crystalline bulk assembly of multicomponent 0D metal halides, (bmpy)9[SbCl5]2[Pb3Cl11] (bmpy = 1-butyl-1-methylpyrrolidinium), which exhibits dual emissions from distinct metal halide species. Excitation-dependent warm white light emissions with high photoluminescence quantum efficiencies of >70% can be obtained by combining green emission from Pb3Cl11 5- and orange emission from SbCl5 2-. Because of complete site isolation by wide bandgap organic moieties and little-to-no spectral overlaps, no energy transfer occurs between two distinct emitting species, allowing for precise color control by manipulating the excitation wavelengths. Our discovery of dual emitting organic metal halide hybrid opens up a new way to develop precisely ordered single-crystalline multicomponent materials with multi-functionalities.
Original language | English |
---|---|
Pages (from-to) | 376-380 |
Number of pages | 5 |
Journal | ACS Materials Letters |
Volume | 2 |
Issue number | 4 |
DOIs | |
State | Published - Apr 6 2020 |
Externally published | Yes |
Funding
The authors acknowledge supports from the National Science Foundation (DMR-1709116), the Air Force Office of Scientific Research (AFOSR) (17RT0906), and the FSU Office of Research. J.N. and T.S. acknowledge 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.