ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
To gain nanometer SrAl2O4:Eu,Dy phosphors, uniform fine precursors of Eu and Dy iondoping strontium aluminate were prepared by microemulsion technology. Using as-synthesized stuff,long afterglow phosphors SrAl2O4:Eu,Dy were obtained after sintered at 1200°C. TEM characterizationshowed the morphology of their grains is sphere-shaped with size less then 100nm. XRD analysisilluminated the crystal structure of SrAl2O4:Eu2+, Dy3+ phosphors is monoclinic. Fluorometryexamination detected the peak in emitting spectrum is at 510nm, and at 310nm in exciting spectrum,which both have little blue shift contrasting to the same kind of phosphors synthesized by solid-statereaction method. Finally, the major parameters influencing the grain size of prepared phosphor powderswere made a discussion
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.613.pdf
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