| 室温下合成纺锤形貌六方相NaLnF_4(Ln=Nd,Sm,Eu,Gd,Tb)纳米颗粒 |
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| 引用本文： | 史松君,朱永春,毕慧云,钱逸泰.室温下合成纺锤形貌六方相NaLnF_4(Ln=Nd,Sm,Eu,Gd,Tb)纳米颗粒[J].无机化学学报,2010,26(9):1590-1594. |
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| 作者姓名： | 史松君 朱永春 毕慧云 钱逸泰 |
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| 作者单位： | 中国科学技术大学,合肥,230026 |
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| 摘 要： | 室温下合成长250nm,宽100nm的纺锤形貌六方相的NaNdF4。NaEuF4,NaSmF4,NaGdF4和NaTbF4也用同样的方法获得。产物用XRD,TEM,HRTEM,FESEM和PL进行表征。PL光谱显示合成的NaEuF4的激发波长是394nm。NaEuF4有4个特征发射谱带,分别是591,615,650和681nm。
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| 关 键 词： | 稀土元素 氟化物 室温 EDTA 发光性能 |
Synthesis of Shuttle-Like Hexagonal NaLnF4(Ln=Nd, Sm, Eu, Gd, Tb) Nanocrystals at Room Temperature |
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| SHI Song-Jun,ZHU Yong-Chun,BI Hui-Yun and QIAN Yi-Tai.Synthesis of Shuttle-Like Hexagonal NaLnF4(Ln=Nd, Sm, Eu, Gd, Tb) Nanocrystals at Room Temperature[J].Chinese Journal of Inorganic Chemistry,2010,26(9):1590-1594. |
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| Authors: | SHI Song-Jun ZHU Yong-Chun BI Hui-Yun and QIAN Yi-Tai |
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| Institution: | University of Science and Technology of China, Hefei 230026,University of Science and Technology of China, Hefei 230026,University of Science and Technology of China, Hefei 230026 and University of Science and Technology of China, Hefei 230026 |
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| Abstract: | Shuttle-like hexagonal NaNdF4 nanocrystals with a diameter of 100 nm at the middle and a length of 250 nm were synthesized at room temperature. Shuttle-like NaEuF4, NaSmF4, NaGdF4, and NaTbF4 nanocrystals were also synthesized using the same method. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution TEM (HRTEM), field emission scanning electron microscopy (FESEM), and photoluminescence (PL). PL spectra of the as-synthesized NaEuF4 showed an excitation source wavelength of 394 nm. NaEuF4 had four major emission bands at 591, 615, 650 and 681 nm. |
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| Keywords: | rare earth fluorides room temperature EDTA luminescence |
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