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Open Access
Crystal Growth of Silicate Phosphors from the Vapor Phase

Tadashi ISHIGAKI, Kenji TODA, Tatsuya SAKAMOTO, Kazuyoshi UEMATSU, Mineo SATO

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Summary :

Well-crystallized Ba2SiO4:Eu2+ powders were grown on a substrate by the vapor phase reaction between a mixed powder (barium carbonate and europium oxide) and SiO gas. The vaporization of SiO occurs at 1400–1600 from the SiO2 source (or SiO powder) in a reducing atmosphere. The formed SiO gas was transported by 95 vol% Ar - 5 vol% H2 gas and reacted with the raw material powders. The emission intensity of the Ba2SiO4:Eu2 + phosphor synthesized by the new vapor phase technique is about 2.6 times higher than that of a conventional solid-state reaction sample.

Publication
IEICE TRANSACTIONS on Electronics Vol.E94-C No.11 pp.1745-1748
Publication Date
2011/11/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E94.C.1745
Type of Manuscript
Special Section INVITED PAPER (Special Section on Electronic Displays)
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