Wu Hai-Xia, Lu Xiao-Min, Chen Jia-Yi, Yang Xiao-Gang, Qin Wen-Jing, Ma Lu-Fang
College of Chemistry and Chemical Engineering, Luoyang Normal University, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang 471934, P. R. China.
College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P. R. China.
Inorg Chem. 2021 Jan 18;60(2):846-851. doi: 10.1021/acs.inorgchem.0c02888. Epub 2021 Jan 6.
Metal-organic frameworks (MOFs) or coordination polymers (CPs)-based phosphorescence materials may provide a powerful route for photoelectric and optical recording devices. Herein, two phosphorescence ligands, iso-phthalic acid (IPA) and 2-methylimidazole (MIM), were selected to construct an nonporous CP {Zn(IPA)(MIM)} () with a long-lived phosphorescence lifetime up to 552 ms. By the doping of Eosin Y (EY) dye molecules under an in situ process, the phosphorescence emission color of can be expressly tuned from green to red. The light-harvesting range can also be vastly broadened from the UV to the visible region (550 nm). Photoelectron measurements reveal that the synergistic effect of bias voltage and illumination can greatly restrain electron-hole recombination for the generation of additional free charges.
基于金属有机框架（MOF）或配位聚合物（CP）的磷光材料可能为光电和光学记录设备提供一条有力途径。在此，选择了两种磷光配体，间苯二甲酸（IPA）和2-甲基咪唑（MIM），来构建一种具有长达552毫秒的长寿命磷光寿命的无孔CP {Zn(IPA)(MIM)}（）。通过原位过程中曙红Y（EY）染料分子的掺杂，的磷光发射颜色可以明确地从绿色调至红色。光捕获范围也可以从紫外区域大幅拓宽至可见光区域（550纳米）。光电子测量表明，偏置电压和光照的协同效应可以极大地抑制电子-空穴复合以产生额外的自由电荷。
