Wang Hua-Rui, Tian Xu-Ke, Zhang Ji-Rui, Wen Meng-Yao, Yang Xiao-Gang
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.
Dalton Trans. 2022 Aug 2;51(30):11231-11235. doi: 10.1039/d2dt01649d.
A novel metal-organic framework (MOF) host-guest material [Cd(EtOIPA)(HAD)]·HO has been successfully synthesized by the reaction of 5-ethoxyisophthalic acid (EtOIPA), acridine (AD) and Cd(II) salts under hydrothermal conditions. Structurally, the title MOF possesses a trinucleate Cd(II) based 2D double-layer with the protonated AD cations as the template encapsulated into the grids. The combination of experiments and theoretical calculations reveals that the orderly arrangement of EtOIPA dimers, protonated AD cations and trinucleate Cd(II) clusters generates highly delocalized π-electron channels with a prolonged exciton lifetime. The MOF powders show bright yellow emission with a long lifetime of 50.63 ns. Photoelectrochemical measurements reveal a high photocurrent density ratio of 290 between light and dark conditions at 0 V bias potential, making it a perfect self-driven photodetector. By coating the yellow phosphor on a commercially available blue LED, a high performance white LED with CIE, CCT and CRI values of (0.325, 0.336), 88.2 and 5844 K, respectively can be obtained.
