Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat) , Jawaharlal Nehru Centre for Advanced Scientific Research , Jakkur, Bangalore 560064 , India.
Inorg Chem. 2020 Jan 21;59(2):1436-1443. doi: 10.1021/acs.inorgchem.9b03183. Epub 2020 Jan 7.
We report a one-step, solvent-free, green approach for the mechanochemical stabilization of hybrid organic-inorganic lead halide (MAPbBr) perovskite quantum dots (PQDs) within perovskite metal-organic frameworks (MOFs) [MA-M(HCOO)] [M = Mn and Co; MA = methylammonium (CHNH)]. The perovskite MOF acts as a template and source of MA cations for growing and stabilizing hybrid PQDs. The synthesis of the composite has been carried out mechanochemically, without the use of any external reagents by simply grinding the perovskite MOF with PbBr. MAPbBr@MA-Mn(HCOO) composite shows high chemical stability in several solvents. Its excellent processability has been demonstrated by using it as an electrode material which shows photoelectrochemical activity in the presence of light.
我们报告了一种一步法、无溶剂、绿色的方法，用于在钙钛矿金属有机骨架（MOFs）[MA-M（HCOO）] [M = Mn 和 Co；MA = 甲胺（CHNH）]内机械化学稳定混合有机-无机卤化铅（MAPbBr）钙钛矿量子点（PQDs）。钙钛矿 MOF 用作生长和稳定混合 PQD 的模板和 MA 阳离子的来源。通过简单地将 PbBr 与钙钛矿 MOF 研磨，在没有使用任何外部试剂的情况下，通过机械化学方法合成了复合材料。MAPbBr@MA-Mn(HCOO) 复合材料在几种溶剂中表现出高化学稳定性。其优异的加工性能已通过将其用作电极材料来证明，在光照下显示出光电化学活性。
