1. 长春理工大学 化学与环境工程学院,吉林 长春,130022
2. 长春工业大学 化学工程学院,吉林 长春,130012
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刘桂霞, 李若兰, 董相廷, 等. 水热法制备不同形貌的GdVO4 ∶ Eu3+纳米发光材料[J]. 发光学报, 2010,31(3):385-389.
LIU Gui-xia, LI Ruo-lan, DONG Xiang-ting, et al. Hydrothermal Synthesis of GdVO4 ∶ Eu3+ Luminescent Nanomaterials with Different Morphologies[J]. Chinese Journal of Luminescence, 2010,31(3):385-389.
采用水热法制备了不同形貌的GdVO,4, ∶ Eu,3+,纳米晶样品,对其结构以及发光性质进行了表征。XRD结果表明:水热前驱体和经过灼烧之后样品均为四方晶系,具有锆石结构。TEM照片表明:通过改变表面活性剂分别得到了分散性良好的米粒状、六角形和球形的GdVO,4, ∶ Eu,3+,纳米晶粒子。发光光谱表明:在 288 nm的紫外光激发下,不同形貌的GdVO,4, ∶ Eu,3+, 纳米晶材料均在617 nm处产生特征红光发射,归属为Eu,3+,离子的,5,D,0,→,7,F,2,跃迁,不同形貌粒子的发光光谱的相对强度有所不同。
GdVO,4, ∶ Eu,3+, luminescent nanomaterials with different morphologies were prepared by hydrothermal method, and their structure and luminescent properties were characterized. XRD patterns showed that the precursors and the heat-treated samples are tetragonal phase GdVO,4, crystals. TEM images indicated that the rice-shaped, tetragonal-shaped and spherical GdVO,4, ∶ Eu,3+, nanoparticles were obtained by changing different surfactant. Fluorescence spectra showed that under the excitation of 288 nm, GdVO,4, ∶ Eu,3+, nanomaterials with different morphologies have the characteristics of red emission in 617nm, attributing to the ,5,D,0,→,7,F,2, transition of Eu,3+, the intensities of the fluorescence spectra are different for different samples prepared with different surfactants.
GdVO4 ∶ Eu3+纳米晶水热法
GdVO4 ∶ Eu3+nanocrystalhydrothermal method
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