| 초록 |
We present that the stable and inert Ln(III)-cored complexes based on anthracene, naphthalene, and Pt-porphyrin dendritic ligands exhibit much stronger near-IR emission band of the 4f-4f electronic transition. The emission intensity of the lanthanide complexes was dramatically enhanced by introducing the Fréchet aryl-ether dendrons, mainly due to the site-isolation effect. All possible energy transfer pathways will be explored anddiscussed. Surprisingly, our photophysical studies suggest that energy transfer pathway does not influence the lanthanide emission enhancement. But, a higher spectral overlap integral value and a higher luminescence quantum efficiency of the luminescent ligand in Ln(III)-cored dendrimer complexes are critical factors for lanthanide emission enhancement. In this presentation, the design and photophysical criteria for lanthanide emission enhancement in Ln(III)-cored complexes based on dendritic ligands for information technology will be presented. |
