Zhao Ying, Yang Xiao-Gang, Lu Xiao-Min, Yang Chun-Di, Fan Ning-Na, Yang Zhao-Tong, Wang Li-Ya, Ma Lu-Fang
College of Chemistry and Chemical Engineering, Henan Province Function-oriented Porous Materials Key Laboratory , Luoyang Normal University , Luoyang 471934 , PR China.
State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , PR China.
Inorg Chem. 2019 May 6;58(9):6215-6221. doi: 10.1021/acs.inorgchem.9b00450. Epub 2019 Apr 19.
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 {Zn} 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.
具有长寿命的基于分子的固态材料能够使激子的迁移距离更长，这有利于在光电子领域的广泛应用。在此，我们报道了一种基于六核锌簇的金属有机框架（MOF），与原始磷光配体相比，其磷光增强了约2个数量级。实验和计算结果相结合表明，{Zn}簇对于调节MOF基质中有机磷光配体的分子构象、堆积排列和光物理性质非常重要。光电子测量表明，MOF修饰电极在中性溶液中光照下对析氢具有催化活性。因此，我们的研究提供了一种实现低成本金属基磷光MOF的有效方法，拓展了其进一步的光电子应用。
