Synthesis and upconversion properties of Ln3+ doped YOF nanofibers
| Autor: | Renyuan Yang, Dan Zhao, Kezhi Zheng, Weiping Qin, Guanshi Qin |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Lanthanide
Chemistry Scanning electron microscope Organic Chemistry Doping Analytical chemistry chemistry.chemical_element Nanotechnology Yttrium Biochemistry Photon upconversion Electrospinning Inorganic Chemistry Transmission electron microscopy Nanofiber Environmental Chemistry Physical and Theoretical Chemistry |
| Zdroj: | Journal of Fluorine Chemistry. 140:38-42 |
| ISSN: | 0022-1139 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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