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Microwave synthesis technique for long phosphorescence phosphor SrAl2O4:Eu2+, Dy3+ using carbon reduction

โœ Scribed by Tadashi Ishigaki; Hitomi Mizushina; Kazuyoshi Uematsu; Nobuhiro Matsushita; Masahiro Yoshimura; Kenji Toda; Mineo Sato

Book ID
104063891
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
353 KB
Volume
173
Category
Article
ISSN
0921-5107

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โœฆ Synopsis

As described herein, we prepared SrAl 2 O 4 :Eu 2+ , Dy 3+ phosphor using a domestic microwave oven operated at 2.45 GHz with 500 W in 30 min, processes with carbon reduction. Using carbon as the microwave absorber it generates thermal energy. Furthermore, heating with carbon can provide a reductive atmosphere. Prepared samples emitted phosphorescence emission for a long time.

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โœ Huajie Song; Donghua Chen ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 202 KB ๐Ÿ‘ 2 views

Eu(2+), Dy(3+) and Tb(3+) co-doped strontium aluminate phosphor with high brightness and long afterglow was synthesized by a combustion method, using urea as a reducer. The properties of SrAl(2)O(4):Eu(2+),Dy(3+),Tb(3+) phosphor with a series of initiating combustion temperatures, urea concentration