Department of Chemistry, University of Colorado Boulder, Boulder, CO, 80309, USA.
Materials Science & Engineering Program, University of Colorado Boulder, Boulder, CO, 80303, USA.
Small. 2023 Mar;19(11):e2206988. doi: 10.1002/smll.202206988. Epub 2023 Jan 15.
Herein, the synthesis of Cu (HAB) (TATHB) (HAB: hexaaminobenzene, TATHB: triaminotrihydroxybenzene) is reported. Synthetic improvement of Cu (TATHB) leads to a more crystalline framework with higher electrical conductivity value than previously reported. The improved crystallinity and analogous structure between TATHB and HAB enable the synthesis of Cu (HAB) (TATHB) with ligand compositions precisely controlled by precursor ratios. The electrical conductivity is tuned from 4.2 × 10 to 2.9 × 10 S cm by simply increasing the nitrogen content in the crystal lattice. Furthermore, computational calculation supports that the solid solution facilitates the band structure tuning. It is envisioned that the findings not only shed light on the ligand-dependent structure-property relationship but create new prospects in synthesizing multicomponent electrically conductive metal-organic frameworks (MOFs) for tailoring optoelectronic device applications.
本文报道了 Cu（HAB）（TATHB）（HAB：六亚甲基苯，TATHB：三氨基三羟基苯）的合成。Cu（TATHB）的合成改进导致了具有比以前报道更高电导率值的更结晶骨架。TATHB 和 HAB 之间改进的结晶度和类似结构使得可以通过前体比精确控制配体组成来合成 Cu（HAB）（TATHB）。通过简单地增加晶格中的氮含量，将电导率从 4.2×10 调节至 2.9×10 S cm。此外，计算计算支持固溶体有利于能带结构的调整。可以预见，这些发现不仅揭示了配体依赖性结构-性能关系，而且为合成用于调整光电设备应用的多组分导电金属有机骨架（MOF）创造了新的前景。
