研究目的
To synthesize Eu3+-doped Gd4Mo7O27 crystals through the crystallization of Gd2O3-MoO3-B2O3 glasses and to clarify PL features of Eu3+ ions in MoO3-based crystallized glasses.
研究成果
The study successfully synthesized Eu3+-doped Gd4Mo7O27 crystals and characterized their PL emissions for the first time. The crystallized glasses exhibited distinct colors under UV light irradiation, and the PL features of Eu3+ ions were closely related to the structural features of Gd4Mo7O27 crystals with an inversion symmetry. The potential of Gd4Mo7O27 as a new host crystal for rare-earth-doped phosphors was proposed.
研究不足
The amount of Eu3+-doped Gd4Mo7O27 crystals formed in the crystallized samples has not been determined, making the discussion on the PL performance qualitative. Further XRD analyses would be required for a decisive conclusion on the incorporation of Eu3+ ions into Gd4Mo7O27 crystals.
1：Experimental Design and Method Selection:
The study involved the synthesis of Eu3+-doped Gd4Mo7O27 crystals through the crystallization of designed Gd2O3-MoO3-B2O3 glasses. The PL emissions of Eu3+ ions were measured to characterize the photoluminescence features.
2：Sample Selection and Data Sources:
Commercial powders of reagent grade Eu2O3, Gd2O3, MoO3, B2O3, and Al2O3 were used as starting materials.
3：List of Experimental Equipment and Materials:
Differential thermal analysis (DTA) was used to determine glass transition and crystallization peak temperatures. Optical absorption spectra were measured with a spectrometer (SHIMADZU: UV-3150). PL spectra were measured with a PL spectrometer (JASCO FP-6500).
4：0). PL spectra were measured with a PL spectrometer (JASCO FP-6500). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The mixtures were melted, poured onto an iron plate, and pressed to a thickness of ~
5：5 mm. The glasses were heat-treated at different temperatures, and the crystalline phases were identified from XRD analysis. Data Analysis Methods:
The PL features were analyzed based on the excitation and emission spectra of Eu3+ ions in the crystallized samples.
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