Abstract
A series of rare earth solid solutions, Tb1-xYx-PTC with pyridine-2, 4, 6-tricarboxylic acid (H3PTC), have been prepared using a hydrothermal synthesis method and characterized by single crystal and powder X-ray diffraction, IR spectroscopy, and thermogravimetric analysis techniques etc. Tb1-xYx-PTC are isomorphous with 1D zigzag metal-oxide chains and 2D coordination polyhedral layers, which are further interlinked into 3D framework by the connection of PTC3− ligands. The photoluminescent behaviors of the solid solutions Tb1-xYx-PTC were carefully studied. The QY of Tb1-xYx-PTC with appropriate amount of Y3+ ion is obviously enhanced due to reducing dipole–dipole and quadrupole–quadrupole interaction between emitters of Tb3+ ions. This study demonstrates that the formation of solid solutions by introducing optically inactive ions is an efficient strategy to get improved photoluminescent materials.
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