Preliminary studies on luminescent terbium-doped thin films prepared by the sol - gel process
| Autor: | M. García, M R Estrada-Yañez, E Pereyra-Perea |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Zirconium
Materials science Photoluminescence Acoustics and Ultrasonics Analytical chemistry chemistry.chemical_element Mineralogy Terbium Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Tetragonal crystal system chemistry Cubic zirconia Thin film Luminescence Sol-gel |
| Zdroj: | Journal of Physics D: Applied Physics. 31:L7-L10 |
| ISSN: | 1361-6463 0022-3727 |
| DOI: | 10.1088/0022-3727/31/3/001 |
| Popis: | Tb thin films have been successfully produced from dichloride ethoxide of zirconium, OEt EtOH and by the sol - gel process. These films show luminescent properties when they are excited with UV light (270 nm). The luminescence spectra present typical transitions from the level belonging to the trivalent terbium ion. The processes used for film deposition were dipping and spinning on glass microscope slides. The films obtained exhibit an average visible transmission between 85 and 95%. The surface profiles show that these films are fairly smooth. The results of x-ray diffraction show that the zirconia coatings present a metastable tetragonal phase. It is observed that such films have excellent properties and are therefore of high technological interest. |
| Databáze: | OpenAIRE |
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