Fluorescent substance

Details Fluorescent substance Fluorescent substance

1997-10-03

2000-10-31

Koslow, C. Melissa

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

2523014R, C07K 1155, C07K 1167

Patent

active

061397741

ABSTRACT:
The present invention provides an infrared fluorescent substance comprising a component represented by general formula AQO.sub.3 :X (A is at least one element selected from the group consisting of Ca, Sr and Ba, Q is Ti or Zr, and X is at least one element selected from the group consisting of Nd and Yb), and optionally comprising component Y (Al, Ga or In) and/or component Z (Sc, Y, Gd, Bi, Lu or La). Said fluorescent substance is free from the faults of phosphate type fluorescent substances, namely high price and deep blue color, and is low in price, light in blue color, and high in durability.

REFERENCES:
patent: 5650094 (1997-07-01), Royce et al.
Chemical Abstract Citation 89:188284, "Kravets et al, Synthesis and Spectral-luminescent Properties of Calcium Zirconate Doped with Europium (3+), Dysprosium (3+), Neodymium (3+) and Terbium (3+) Ions", 1978 no month.

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