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 language | English |
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Pages (from-to) | 38-42 |
Number of pages | 5 |
Journal | Journal of Fluorine Chemistry |
Volume | 140 |
DOIs | |
State | Published - Aug 2012 |
Externally published | Yes |
Keywords
- Electrospinning
- Oxyfluoride
- Upconversion