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The crystallinity and the photoluminescent properties of spray pyrolized ZnO phosphor containing Eu2+ and Eu3+ ions
- Source :
-
Journal of Physics & Chemistry of Solids . Nov2004, Vol. 65 Issue 11, p1843-1847. 5p. - Publication Year :
- 2004
-
Abstract
- A europium doped ZnO (ZnO:Eu) particle was directly synthesized by the spray pyrolysis method. The crystal structure of samples was designated by the europium ion and the synthesis temperature. We identified the coexistence of Eu2+ and Eu3+ ions in the as prepared ZnO, which was strongly influenced by the doping concentration and the synthesis temperature. With addition of a 0.5mol% concentration of europium ions, only the Eu2+ ion existed in particles, while both Eu2+ and Eu3+ ions existed in sample using 1mol% or higher concentration of europium ions. Changing the wavelength of the excitation source, we also found that both the blue and red luminescence can be obtained. [Copyright &y& Elsevier]
- Subjects :
- *EUROPIUM
*PYROLYSIS
*TEMPERATURE
*IONS
Subjects
Details
- Language :
- English
- ISSN :
- 00223697
- Volume :
- 65
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Journal of Physics & Chemistry of Solids
- Publication Type :
- Academic Journal
- Accession number :
- 14579611
- Full Text :
- https://doi.org/10.1016/j.jpcs.2004.06.008