SILICATE-BASED OXIDE PHOSPHOR AND METHOD OF PREPARATING PODWER OF THE SAME

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A, Braun tube, light emitting diode (LED), plasma display panel PDP), field emission display (FED) and cold-cathode fluorescent lamp (CCFL) and lamp display such as which can be used in the light-emitting device for at least one capillary tube of SiO-based (and europium-containing silicate-based) oxide on a powdered fluorescent substance relates to manufacturing method, alkali metal salt, metal or a combination thereof +2, silicon compound and rare earth metal salt is impregnated material a polymeric aqueous solution including obtaining a precursor, said precursor 2 step size micro and a sub nanosized by calcined oxide phosphor-based SiO as to the powder is obtained.