无机材料学报 ›› 2011, Vol. 26 ›› Issue (3): 271-274.DOI: 10.3724/SP.J.1077.2011.00271

• 研究论文 • 上一篇    下一篇

静电纺丝技术制备一维LaPO4:Eu3+红光微纳米纤维

李 珍, 耿加强, 柳 巍   

  1. 山东理工大学 材料科学与工程学院,淄博255049
  • 收稿日期:2010-05-19 修回日期:2010-07-28 出版日期:2011-03-20 网络出版日期:2011-02-18
  • 作者简介:李 珍(1986-), 女, 硕士研究生.
  • 基金资助:

    国家自然科学基金(59783001)

Fabrication of One-dimensional LaPO4 : Eu3+ Micro-nanofibers by Electrospinning

LI Zhen, GENG Jia-Qiang, LIU Wei   

  1. College of Materials Science and Engineering , Shandong University of Technology, Zibo 255049,China
  • Received:2010-05-19 Revised:2010-07-28 Published:2011-03-20 Online:2011-02-18
  • Supported by:

    National Natural Science Foundation of China (59783001)

摘要: 采用静电纺丝技术制备 了 Eu3+掺杂的LaPO4微纳米纤维. 通过扫描电镜(SEM), X射线衍射(XRD), 热重-差热(TG-DTA)及荧光光谱(PL)对所得样品进行了表征. 样品焙烧800℃后的XRD图谱与单斜LaPO4的标准卡片JCPDS-35-0731基本吻合; 在波长为409 nm的紫外光激发下, 发射光谱由Eu3+5 D 0 - 7 F J (J = 1, 2, 3, 4)特征发射组成, 5 D0- 7 F 2 (在618 nm处)跃迁最强, 表现为Eu3+的红色特征发射; LaPO4: Eu3+微纳米纤维中Eu3+的最佳掺杂浓度为5 mol%. Eu3+的光致发光衰减曲线符合单指数行为, 其寿命(τ)为3.7ms.

关键词: 静电纺丝, LaPO4Eu3+微纳米纤维, 荧光

Abstract: Eu3+-doped LaPO4 micro-nanofiberswere prepared by the electro spinning technology. Scanning electron microscope(SEM), X-ray diffraction (XRD), the mogravimetry-differential thermal analysis(TG-DTA), and photoluminescencespectra (PL) were used to characterize the obtained samples. XRD patterns indicate that theas-prepared micro-nanofibers are crystallized well at 800℃ and assign edto JCPDS-35-0731 of the monoclinic LaPO4 crystal. Upon excitation into the Eu3+ at 409 nm, the emission spectrum of LaPO4:Eu3+ micro-nanofibers is composed of 5 D0- 7 F J (J = 1, 2, 3, 4) emission lines of Eu3+, with the transition 5 D0 - 7 F2 (at 618 nm) being the most prominent group, which is characterized by red emission. The optimum doping concentration of Eu3+ is 5mol% in the LaPO4: Eu3+ micro-nanofibers. The luminescence decay curve of LaPO4: Eu3+ micro-nano fibers shows single exponential behavior, and the lifetime(τ) of Eu3+ is about 3.7 ms.

Key words: electrospinning, LaPO4:Eu3+ micro-nanofibers, luminescence

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