一维La2O3:Eu纳米纤维的制备及荧光性质

一维La2O3:Eu纳米纤维的制备及荧光性质

张晓燕,柳巍

山东理工大学材料科学与工程学院, 山东淄博 250049

收稿日期:2008-10-15 修回日期:1900-01-01 出版日期:2009-04-24 发布日期:2009-11-26
通讯作者: 柳巍

Preparation and luminescence properties of onedimensional La2O3:Eu nanofibers

ZHANG Xiaoyan, LIU Wei

College of Materials Science and Engineering, Shandong University of Technology, Zibo 255049, Shandong, China

Received:2008-10-15 Revised:1900-01-01 Online:2009-04-24 Published:2009-11-26
Contact: LIU Wei

摘要/Abstract

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。

关键词: 荧光光谱, 静电纺丝, La2O3:Eu3+纳米纤维

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.

Key words: electriospinning, La2O3: Eu nanofibers, luminescence spectra

中图分类号:

张晓燕,柳巍. 一维La2O3:Eu纳米纤维的制备及荧光性质[J]. J4, 2009, 44(3): 32-34 .

ZHANG Xiaoyan, LIU Wei. Preparation and luminescence properties of onedimensional La2O3:Eu nanofibers[J]. J4, 2009, 44(3): 32-34 .

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