Luminescence studies of the rare earth ions-doped CaF2 and MgF2 films for wavelength conversion
The rare earth (RE) Eu, Yb ions-doped CaF2 and MgF2 films were prepared by the vacuum deposition and sol-gel methods. In the sol-gel method, the trifluoroacetic acid (TFA, CF3000H) was used as a source of fluorine. The RE doped CaF2 and MgF2 films were characterized by photoluminescence (PL), photol...
Saved in:
| Published in | Journal of alloys and compounds Vol. 408-412; pp. 838 - 841 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
09.02.2006
|
| Online Access | Get full text |
Cover
Loading…
| Summary: | The rare earth (RE) Eu, Yb ions-doped CaF2 and MgF2 films were prepared by the vacuum deposition and sol-gel methods. In the sol-gel method, the trifluoroacetic acid (TFA, CF3000H) was used as a source of fluorine. The RE doped CaF2 and MgF2 films were characterized by photoluminescence (PL), photoluminescence excitation (PLE), the X-ray diffraction (XRD) and the atomic force microscopy (AFM) measurements. By the vacuum deposition, the strong luminescence due to the electric dipole allowed 4fn-4fn-15d1 transitions of Eu2+ and Yb2+ ions were observed similar with those of the crystalline bulks. The AFM surface images of sol-gel films revealed the formation of the nano-particles for alkaline earth fluorides. |
|---|---|
| Bibliography: | SourceType-Scholarly Journals-2 ObjectType-Feature-2 ObjectType-Conference Paper-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Article-3 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2005.01.133 |