研究目的
Investigating the controlled fabrication of crystal nanostructures with desired morphology for tuning their optical microcavities in metal-organic frameworks (MOF) to develop pure MOF microlasers with on-demand functions.
研究成果
The study successfully demonstrated the shape-engineering of pure MOF microlasers through the coordination mode-tailored method, achieving low-threshold lasing in both 1D microwires and 2D microplates. The distinct lasing behaviors confirmed a shape-dependent microcavity effect, providing a pathway for the development of MOF-based micro/nanolasers with tailored functions.
研究不足
The study focuses on the fabrication and optical properties of MOF microlasers but does not extensively explore their integration into practical photonic devices or their performance under varying environmental conditions.
1：Experimental Design and Method Selection:
The study utilized a coordination mode-tailored method to fabricate pure MOF microlasers with controlled cavity shapes by changing the HCl concentration to tailor the coordination modes.
2：Sample Selection and Data Sources:
Cd2+ ion was chosen as the metal node, and 1,1,2,2-tetrakis(4’-(pyridin-4-yl)-[1,1’-biphenyl]-4-yl)ethene (tpbe) was selected as the organic ligand.
3：List of Experimental Equipment and Materials:
The experiments involved the use of Cd(NO3)2?4H2O, tpbe, DMF/H2O solvent, and HCl as the reaction modulator.
4：Experimental Procedures and Operational Workflow:
The MOF microcrystals were fabricated using a solvothermal method at 65 oC for 12 h in the presence of HCl with different concentrations.
5：Data Analysis Methods:
The lasing behaviors and microcavity effects were analyzed through photoluminescence microscopy and spectroscopy.
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