| 一维La2O3:Eu纳米纤维的制备及荧光性质 |
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| 引用本文： | 张晓燕,柳巍.一维La2O3:Eu纳米纤维的制备及荧光性质[J].山东大学学报(理学版),2009,44(3):32-34. |
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| 作者姓名： | 张晓燕 柳巍 |
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| 作者单位： | 山东理工大学材料科学与工程学院,山东,淄博,255049
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| 基金项目： | 国家自然科学基金，山东省自然科学基金，山东省教育厅资助项目 |
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| 摘 要： | 采用高压静电纺丝技术, 经高温焙烧制得掺杂Eu3+的一维六方晶相La2O3纳米纤维。采用扫描电镜(SEM)、X 射线衍射(XRD)、差热-热重分
析(TG DTA)及荧光光谱(PL)等测试手段对纤维的表面形貌、纯度、晶型及荧光性质进行了表征。由扫描电镜照片可以看出所制得的纤维较为均匀,纤维直径分布在370～430?nm之间,经过1?100?℃焙烧后
直径减小至245?nm左右。荧光光谱测试显示出样品具有较好的荧光性质,尤其是Eu3+的f f跃迁激发及电荷转移跃迁引起较强发光。
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| 关 键 词： | 静电纺丝 La2O3:Eu3+纳米纤维 荧光光谱 |
| 收稿时间： | 2008-10-15 |
Preparation and luminescence properties of one-dimensional La_2O_3:Eu nanofibers |
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| ZHANG Xiao-yan,LIU Wei.Preparation and luminescence properties of one-dimensional La_2O_3:Eu nanofibers[J].Journal of Shandong University,2009,44(3):32-34. |
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| Authors: | ZHANG Xiao-yan LIU Wei |
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| Institution: | College of Materials Science and Engineering;Shandong University of Technology;Zibo 255049;Shandong;China |
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| Abstract: | One dimensional nanofibers with Eu3+ doped La2O3 were prepared by the electrospinning method followed by high temperature calcinations. Their structures and
optical properties were characterized by SEM, X ray diffraction (XRD), thermogravimetry differential thermal analysis (TG DTA), and photoluminescence spectra(PL) SEM images
of fibers showed that the grain size is about 370～430?nm, and the diameter diminishes, with an average grain size of about 245?nm when calcined at 1?100?℃. The PL spectra
show considerable enhancement of photoluminescence, especially the Eu3+ f f transition excitation lines and the charge transfer band. |
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| Keywords: | La2O3 |
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