Light phosphor with zeolitic structure

Details Light phosphor with zeolitic structure Light phosphor with zeolitic structure

2006-06-19

2009-12-01

Koslow, C. Melissa (Department: 1793)

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

C252S30140P, C252S30160R, C252S301360, C423S705000, C502S061000

Reexamination Certificate

active

07625504

ABSTRACT:
The present invention is related to a phosphor that can be excited by UV light between 375 to 400 nm to emit white light, which is intrinsically produced by emitting blue light with yellow light simultaneously. This compound is synthesized from organic amine, metal oxide and phosphate under hydrothermal conditions, and gives rise to a zeolitic structure with the chemical formula of (A)5-x/2[Zn9-xGaxO(HPO4)(PO4)8].yH2O (0<x<9, 0<y<15). On the other hand, when synthesized by different solvents, it is possible to obtain a phosphor of the same chemical formula and structure, but it can emit yellow light when excited by UV light or blue light emitted by LED between 300 to 500 nm.

REFERENCES:
Yueh-Chun Liao.A Zeolitic Organo-Metallophosphate Hybrid Material with Bimodal Porosity. J. Am. Chem. Soc., 2004, 126 (5), pp. 1320-1321.
Pingyun Feng. Photoluminescence of open-framework phosphates and germanates. Chem. Commun., 2001, 1668-1669.

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