Luminescence properties of BaZrSi3O9:Eu synthesized by an aqueous solution method

Samples of blue-green light-emitting BaZrSi3O9:Eu were successfully synthesized by using a novel aqueous solution method using propylene glycol-modified silane (PGMS). Luminescence properties of the phosphor were studied as a function of synthesis composition and firing methods. The synthesized Ba0....

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Bibliographic Details
Published in:Journal of luminescence 2015-02, Vol.158, p.328-332
Main Authors: Komukai, Tetsufumi, Takatsuka, Yuji, Kato, Hideki, Kakihana, Masato
Format: Article
Language:English
Subjects:
Phosphor
Silicate
White LEDs
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Summary:Samples of blue-green light-emitting BaZrSi3O9:Eu were successfully synthesized by using a novel aqueous solution method using propylene glycol-modified silane (PGMS). Luminescence properties of the phosphor were studied as a function of synthesis composition and firing methods. The synthesized Ba0.97ZrSi3O9:0.03 Eu+0.3SiO2 phosphor showed high emission intensity (more than 250% of the reference, YAG:Ce P46 (Kasei Optonix)) and exhibited a flat excitation band ranging from 290nm to 420nm, suggesting that it can work when combined with commercial near-UV LEDs. •Blue-green phosphor BaZrSi3O9:Eu is successfully synthesized.•Emission intensity is significantly improved by annealing in air.•The improvement is attributed to a decrease in self-absorption of crystal matrix.
ISSN:0022-2313
1872-7883
DOI:10.1016/j.jlumin.2014.10.021