Synthesis, characterization and understanding photophysical properties of isoreticular metal-organic frameworks
- UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
- Sujoy Saha (Creator)
- Institution
- The University of North Carolina at Greensboro (UNCG )
- Web Site: http://library.uncg.edu/
- Advisor
- Hemali Rathnayake
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.
Synthesis, characterization and understanding photophysical properties of isoreticular metal-organic frameworks
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Created on 5/1/2021
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Additional Information
- Publication
- Thesis
- Language: English
- Date: 2021
- Keywords
- Band structures, Dielectric Constant, IRMOFs, Metal-Organic Frameworks, Photophysics, Self-Assembly
- Subjects
- Metal-organic frameworks
- Self-assembly (Chemistry)
- Light $x Physiological effect