Self-assembled 3D flower-like NaY(MoO4)2:Eu microarchitectures: Hydrothermal synthesis, formation mechanism and luminescence properties |
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Authors: | Ying HuangLiqun Zhou Lan YangZiwei Tang |
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Affiliation: | Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China |
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Abstract: | Self-assembled 3D flower-like NaY(MoO4)2:Eu3+ microarchitectures were successfully synthesized by a glycine-assisted hydrothermal method at 180 °C. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM) were employed to characterize the as-obtained products. It was found that morphology modulation could be easily realized by changing the time of hydrothermal reaction system. 3D flower-like NaY(MoO4)2:Eu3+ microarchitectures were formed with 72 h reaction time. The formation mechanism for flower-like architecture was proposed on the basis of a series of time-dependent experiments. The NaY(MoO4)2:Eu3+ powders obtained can be effectively excited by 396 nm light, and exhibit strong red emission around 615 nm, attributed to the Eu3+5D0 → 7F2 transition. An investigation on the photoluminescence (PL) properties of NaY(MoO4)2:Eu3+ obtained revealed that the luminescence properties were correlated with the morphology and size. |
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Keywords: | Hydrothermal NaY(MoO4)2:Eu3+ Flower-like microarchitecture Luminescence |
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