Fluorescent substance and manufacturing method thereof

Details Fluorescent substance and manufacturing method thereof Fluorescent substance and manufacturing method thereof

1996-03-08

1997-10-14

Bonner, Melissa

Compositions

Inorganic luminescent compositions

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

501 12, 501 54, 423335, 423338, 423339, C09K 1159, C03B 3514

Patent

active

056768826

ABSTRACT:
A fluorescent substance of which main component is comprised from 32 mol % to 35 mol % of silicon element and from 68 mol % to 65 mol % of oxygen element, and in which includes from 10 ppm to 1 wt % of silicon carbide and silicon nitride as an activator. And, a manufacturing method of the fluorescent substance by hydrolyzing silicon alkoxide by using alkali or acid catalyzer under the presence of carbon, and by heat treating the obtained precursor at the temperature of 500.degree. C. to 900.degree. C.

REFERENCES:
patent: Re32107 (1986-04-01), January
patent: 3999835 (1976-12-01), Newns et al.
patent: 5229336 (1993-07-01), Akiyama et al.

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