Method for synthesizing fine-grained phosphor powders of the typ

Details Method for synthesizing fine-grained phosphor powders of the typ Method for synthesizing fine-grained phosphor powders of the typ

1995-10-23

1998-04-28

Breneman, R. Bruce

Single-crystal, oriented-crystal, and epitaxy growth processes;

Processes of growth with a subsequent step acting on the...

117 3, 117 7, C30B 2502

Patent

active

057439559

ABSTRACT:
A method for generating well-crystallized photo- and cathodoluminescent oxide phosphor powders. The method of this invention uses hydrothermal synthesis and annealing to produce nearly monosized (RE.sub.1-x Ln.sub.x)(P.sub.1-y V.sub.y)O.sub.4 (Ln.dbd.Ce.fwdarw.Lu) phosphor grains with crystallite sizes from 0.04 to 5 .mu.m. Such phosphors find application in cathode-ray tube, flat-panel, and projection displays.

REFERENCES:
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patent: 3511785 (1970-05-01), Ropp et al.
patent: 3580861 (1971-05-01), Ropp et al.
patent: 5322559 (1994-06-01), Sleight
patent: 5433778 (1995-07-01), Sleight
O. Yamguchi, Y. Mukaida, H. Shigeta, H. Takemura, and M. Yamashita, "Preparation of Alkoxy-Derived Yttrium Vanadate", J. Electrochem. Soc. 136(5), 1557-60 (1989).
R. C. Ropp and B. Carroll, Precipitation of Rare Earth Vanadates from Aqueous Solution J. Inorg. Nucl. Chem. 39, 1303 (1977).

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