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Synthesis, Characterization and Comparative Luminescence Studies of Rare-Earth-Doped Gd 2O 3 Nanoparticles

机译:稀土掺杂Gd <下标> 2 O <下标> 3 纳米粒子的合成,表征和对比发光研究

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摘要

A facile direct precipitation method was used for the synthesis of luminescence nanomaterial. Gd~(2)O~(3)doped with rare earth element Eu_(3+)is synthesized by polyol route. The synthesized nanoparticles show their characteristic red emission. The nanoparticles are characterized by x-ray diffractometer (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and photoluminescence (PL) study. The synthesized nanoparticles are spherical particles with ~?30?nm size. The photoluminescence studies show the characteristic Eu_(3+)red emission. The PL study shows the intensity of the magnetic dipole transition ( $$ ^{5} D_{0} o ,^{7} F_{1} $$ 5 D 0 → 7 F 1 ) at 592?nm compared to that of the electronic dipole transition ( $$ ^{5} D_{0} o ,^{7} F_{2} $$ 5 D 0 → 7 F 2 ) at 615?nm. The nanomaterials can show significant application in various display devices and biomedical applications for tracking.
机译:用于合成发光纳米材料的容易直接沉淀法。 通过多元醇途径合成掺杂有稀土元素EU_(3+)的Gd〜(3)。 合成的纳米颗粒显示其特征红色发射。 纳米颗粒的特征在于X射线衍射仪(XRD),傅里叶变换红外光谱(FTIR),透射电子显微镜(TEM)和光致发光(PL)研究。 合成的纳米颗粒是球形颗粒,其尺寸为〜30Ω。 光致发光研究显示特征EU_(3+)红色发射。 PL研究显示磁性偶极转换的强度($$ ^ {5} d_ {0} to ,^ {7} f_ {$$ 5 d 0→7 f 1),与592?nm相比 电子偶极转换($$ ^ {5} d_ {0} to ,^ {7} f_ {2} $$ 5 d 0→7 f 2),在615?nm。 纳米材料可以在各种显示装置和生物医学应用中显示出显着的应用,用于跟踪。

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