Synthesis, characterization and understanding photophysical properties of isoreticular metal-organic frameworks
Year: 2021
Type: article
Abstract: A series of isoreticular metal-organic frameworks (IRMOFs) formed by self-assembly directed solvothermal process using organic chromophores with metal ions emerge as future luminophores for optoelectronic devices. We have explored the photophysical properties of IRMOFs, consisting of different ligands of dicarboxylic acids, as luminophores. The crystalline cubic structures of IRMOFs with rigid frameworks of dicarboxylic acid units exhibit solvent-driven charge transfer dynamics, investigated from the photoluminescence intensity and peak shift in emission spectra of IRMOFs in different solvents. The elemental composition analysis confirms the original structural formulas of n-IRMOFs, where n= 1, 8, and 10. The thermal stability and dielectric properties of IRMOFs are also explored. A rapid analytical approach combining experimental spectroscopic data with theoretical equations is developed to predict the electronic band structure of these three IRMOFs by considering a 1-D periodic array model. This novel analytical approach serves as a predictive and rapid screening tool to search the MOF database to identify potential semiconducting MOFs.
Author: Sujoy Kumar Saha
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3184748829