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Synthesis, Structural and Luminescence Studies of Pyrochlore Phase Free TiO2:Dy3+ Produced by Solid-state Reaction Method.
- Source :
- International Journal of Applied Ceramic Technology; Nov/Dec2016, Vol. 13 Issue 6, p1139-1148, 10p
- Publication Year :
- 2016
-
Abstract
- TiO<subscript>2</subscript>:Dy<superscript>3+</superscript> powders without any secondary phases have been prepared by solid-state reaction through the optimization of synthesis conditions, doping amount and subsequently through a purification step. The maximum dysprosium solubility was found at 0.43 mol% in the range 800-900°C. The Rietveld refinement was performed to calculate the amount of phases and lattice constants. The effect of synthesis conditions and doping on strain and crystallite size is also discussed. Room temperature photoluminescence of TiO<subscript>2</subscript>:Dy<superscript>3+</superscript> shows blue and yellow color emission. It is shown that yellow emission can be enhanced with the reduction of the pyrochlore phase Dy<subscript>2</subscript>Ti<subscript>2</subscript>O<subscript>7</subscript>. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1546542X
- Volume :
- 13
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- International Journal of Applied Ceramic Technology
- Publication Type :
- Academic Journal
- Accession number :
- 119477588
- Full Text :
- https://doi.org/10.1111/ijac.12573