Synthesis and upconversion properties of Ln 3+ doped YOF nanofibers

Renyuan Yang, Guanshi Qin, Dan Zhao, Kezhi Zheng, Weiping Qin

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29 Scopus citations

Abstract

Nanofibers of YOF doped with trivalent lanthanide ions (Ln 3+) have been synthesized successfully via an electrospinning method combining with high-temperature calcination in air. Scanning electron microscopy (SEM) observations showed that the nanofibers had uniform one-dimensional (1D) morphology. X-ray diffraction (XRD) analysis and transmission electron microscopy (TEM) images revealed that the calcined fibers were constituted by rhombohedral phase yttrium oxyfluoride nanocrystals. Under the excitation from a 980 nm laser diode, YOF:Yb 3+,Tm 3+ and YOF:Yb 3+,Er 3+ fibers emitted blue and red light, respectively. Upconversion mechanisms of these YOF:Ln 3+ fibers were also discussed in detail.

Original languageEnglish
Pages (from-to)38-42
Number of pages5
JournalJournal of Fluorine Chemistry
Volume140
DOIs
StatePublished - Aug 2012
Externally publishedYes

Keywords

  • Electrospinning
  • Oxyfluoride
  • Upconversion

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