| 铕掺杂纳米氧化锌晶体结构和荧光光谱的研究 |
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| 作者姓名： | Huang FY Luo L Dai QQ |
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| 作者单位： | 广东工业大学物理与光电工程学院,广东广州,510006 |
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| 基金项目： | 国家自然科学基金项目(10774031); 广东省自然科学基金项目(07001790)资助 |
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| 摘 要： | 以醋酸锌、氧化铕、氢氧化钠为主要原材料,利用共沉淀法制备ZnO∶Eu3+纳米晶体.在X射线衍射谱中,只观察到氧化锌的峰,没有观察到氧化铕的特征峰.比较了ZnO和ZnO∶Eu3+拉曼光谱,在ZnO∶Eu3+样品拉曼光谱中观察到新的局部振动模.这些现象表明铕离子已经进入氧化锌晶格中.SEM形貌显示Eu3+离子掺入使ZnO晶...
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| 关 键 词： | 荧光光谱 共沉淀法 能量传递 拉曼光谱 |
Crystal structure and photoluminescence studies of ZnO nanocrystals doped with Eu3+ ions |
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| Huang FY,Luo L,Dai QQ.Crystal structure and photoluminescence studies of ZnO nanocrystals doped with Eu3+ ions[J].Spectroscopy and Spectral Analysis,2011,31(11):2978-2980. |
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| Authors: | Huang Fang-Ying Luo Li Dai Qiang-Qin |
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| Institution: | HUANG Fang-ying,LUO Li,DAI Qiang-qin School of Physics & Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510006,China |
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| Abstract: | The ZnO: Eu3+ crystal was prepared via coprecipitation with the starting materials Zn(OOCCH3)2 x 2H2O, Eu2O3 and NaOH. The X-ray diffraction patterns show that the samples are hexagonal wurtzite structure, No diffraction peaks from europium oxides are detectable. Comparing the ZnO and ZnO : Eu3+ Raman spectra, the new local vibrational modes were observed in ZnO : Eu3+. These phenomena show that Eu3+ ions have entered the lattice by doping. The SEM analysis exhibits that ZnO nanoparticles prepared by coprecipitation become smaller with Eu3+ doping. The excitation and emission spectra of ZnO : Eu3+ sample present a efficient energy transfer process between ZnO and Eu3+ ions. |
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| Keywords: | Photoluminescence Coprecipitation Energy transfer Raman spectrum |
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