4.4 Article

Synthesis and upconversion luminescence properties of YF3:Yb3+/Er3+ hollow nanofibers derived from Y2O3:Yb3+/Er3+ hollow nanofibers

期刊

JOURNAL OF NANOPARTICLE RESEARCH
卷 15, 期 6, 页码 -

出版社

SPRINGER
DOI: 10.1007/s11051-013-1704-4

关键词

Yttrium trifluoride; Upconversion luminescence; Nanofibers; Hollow nanofibers; Electrospinning

资金

  1. National Natural Science Foundation of China (NSFC) [50972020, 51072026]
  2. Ph.D. Programs Foundation of the Ministry of Education of China [20102216110002, 20112216120003]
  3. Science and Technology Development Planning Project of Jilin Province [20070402, 20060504]
  4. Key Research Project of Science and Technology of Ministry of Education of China [207026]

向作者/读者索取更多资源

YF3: Yb3+/Er3+ hollow nanofibers were successfully fabricated via fluorination of the relevant Y2O3: Yb 3?/Er3+ hollow nanofibers whichwere obtained by calcining the electrospun PVP/[Y(NO3) 3 ? Yb (NO3)(3) ? Er(NO3)(3)] composite nanofibers. The morphology and properties of the products were investigated in detail by X- ray diffraction, scanning electron microscope, transmission electron microscope, and fluorescence spectrometer. YF3: Yb-3+/Er-3? hollow nanofibers were pure orthorhombic phase with space group Pnma and were hollow- centered structure with mean diameter of 174 +/- 22 nm, and YF3: Yb3+/Er3+ hollow nanofibers are composed of nanoparticles with size in the range of 30-60 nm. Upconversion emission spectrum analysis manifested that YF3: Yb 3+/Er3+ hollow nanofibers emitted strong green and weak red upconversion emissions centering at 523, 545, and 654 nm, respectively. The green and red emissions were, respectively, originated from H-2(11/2)/(4) S-3/2 -> I-4(15/2) and F-4(9/2)+-> (4)Il(5/2) energy levels transitions of theEr 3? ions. Moreover, the emitting colors of YF3: Yb3+/Er3+ hollow nanofibers were located in the green region in CIE chromaticity coordinates diagram. This preparation technique could be applied to prepare other rare earth fluoride upconversion luminescence hollow nanofibers.

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