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{Zn6} Cluster Based Metal-Organic Framework with Enhanced Room-Temperature Phosphorescence and Optoelectronic
Ying Zhao1,2, Xiao-Gang Yang1, Xiao-Min Lu1
1College of Chemistry and Chemical Engineering, Henan Province Function-oriented Porous Materials Key Laboratory , Luoyang Normal University , Luoyang 471934 , PR China.
Abstract:
Molecule-based solid-state materials with long lifetimes could enable longer migration distances for excitons, which are beneficial for vast applications in optoelectronic field. Herein, we report a hexanuclear zinc cluster based MOF exhibits highly enhanced phosphorescence about 2 orders of magnitude in comparison with the pristine phosphor ligand. The combination of both experimental and computational results suggest that the {Zn6} cluster is very important for adjusting molecular conformations, packing arrangement, and photophysical properties of the organic phosphor ligands within the MOF matrix. Optoelectronic measurements reveal that the MOF-modified electrode is catalytically active to hydrogen evolution under light irradiation in neutral solution. Thus, our study provide an effective way to achieve low-cost metal-based phosphorescence MOF, expanding its further optoelectronic applications.
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