Inorganic phosphor and method for manufacturing the same

Details Inorganic phosphor and method for manufacturing the same Inorganic phosphor and method for manufacturing the same

2006-06-21

2008-11-18

Lorengo, Jerry (Department: 1793)

Compositions

Inorganic luminescent compositions

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

C252S30140S, C252S30140R

Reexamination Certificate

active

07452484

ABSTRACT:
An inorganic phosphor and a method for manufacturing the same are proposed. The sol-gel method is used and the elements vanadium and sulfate are added to synthesize a red-emission gadolinium titanium oxide phosphor doped with Eu3+, V and S to change the original red/orange-emission property and enhance the red-emission intensity. Moreover, the elements vanadium and sulfate replace the rare-earth Eu3+element as active sites to obtain a white-emission gadolinium titanium oxide phosphor doped with V and S. Using this single-kind phosphor, white light can be emitted under the excitation of violet light without the need of mixing multiple colors.

REFERENCES:
Pang. Luminescent properties of Gd2Ti2O7:Eu3+ phosphor films prepared by sol gel process. Materials Research Bulletin. vol. 39, Issue 11, Sep. 1, 2004, pp. 1607-1614.

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