Ocean's King Lighting Science and Technology Co., Ltd.

Ocean's King Lighting & Technology Co., Ltd.

Zhaopu Shi

Mingjie Zhou

Wenbo Ma

Qingtao Li

Yanbo Qiao

A rare earth ion doped silicate luminescence glass and preparation method thereof are provided. The luminescence glass is the material with the following formula: aMO.bM'O.cSiO.dREO, wherein M is at least one of Na, K and Li, M&#x2032; is at least one of Y, Gd, La, Sc and Lu, RE is at least one of Ce, Tm, Tb, Ho, Dy, Er, Nd, Sm, Eu and Pr. The preparation method is: grinding the raw material until mixed uniformly, calcining the raw material at 1200-1500&#xb0; C. for 1-5 h, cooling to room temperature, annealing at 600-1100&#xb0; C. for 0.5-24 h, cooling to room temperature again, molding then getting the product. The performance of the product is stable. The product is homogenous, and the luminescence performance is good. The light transmittance is high. The process of the preparation method is simple and with low cost.

Rare earth ion doped silicate luminescence glass and preparation method thereof

Blue light emitting glass and the preparation method thereof are provided. The blue light emitting glass has the following composition: aCaO.bAlO.cSiO.xCeO, wherein a, b, c and x are, by mol part, 15-55, 15-35, 20-60 and 0.01-5 respectively. The preparation method comprises: weighing the raw materials according to the composition of the blue light emitting glass; mixing the raw materials uniformly and melting the raw materials to obtain glass melt; molding the glass melt to obtain transparent glass; thermally treating the transparent glass under reducing atmosphere, and thereafter obtaining the finished product. The blue light emitting glass obtained has intense broadband excitation spectrum in ultraviolet region and emits intense blue light under the excitation of ultraviolet light. It is suitable for using as luminescent medium material.

Blue light emitting glass and preparation method thereof

The present invention relates to ZnO green luminescent material and its preparation. The ZnO green luminescent material is prepared by doping a trivalent rare earth ion compound and a Li compound into zinc oxide material. The method comprises the following steps: (1) weighing raw material in the stoichiometric ratio of formula ZnO: xA, yLi, (2) grinding the raw material, sintering it at 800-1200&#xb0; C. for 2-8 h, cooling to the room temperature, and then obtaining the ZnO green luminescent material. The present ZnO green luminescent material doped with trivalent rare earth ion compound and Li compound has high stability and luminous intensity, and has higher low-voltage cathode ray luminescence efficiency. The method can easily be operated and can be used widely.

ZnO green luminescent material and its preparation

Bismuth ion sensitized rare earth germanate luminescence materials and preparation methods are disclosed. The luminescence materials are the compounds of the following general formula (YABiLn)GeO. The preparation methods comprise: using oxides, carbonates, oxalates, acetates, nitrates or halides of Y, A, Bi, Ln and Ge as raw materials, wherein A is one of Gd, Lu, Sc and La, and Ln is at least one of Tm, Ho, Sm, Tb, Eu and Dy, homogeneously grinding the raw materials, sintering at 1300-1500&#xb0; C. for 6-24 h, and then cooling them to room temperature to obtain the bismuth ion sensitized rare earth germanate luminescence materials.

Bismuth ion sensitized rare earth germanate luminescence materials and preparation methods thereof

The present invention relates to oxide luminescent materials activated by trivalent thulium and their preparations. The luminescent materials are the compounds with the following general formula: (RETm)O, wherein a range of x is 0&#x3c;x&#x2266;0.05 and RE is one or two selected from Y, Gd, La, Lu and Sc. These materials are prepared by Sol-Gel method or high temperature solid phase method using metal oxide of Tm, chloride of Tm, nitrate of Tm, carbonate of Tmor oxalate of Tm, and one or two of oxide Y, Gd, La, Luor Sc, chloride Y, Gd, La, Luor Sc, nitrate Y, Gd, La, Luor Sc, carbonate Y, Gd, La, Luor Scand oxalate of Y, Gd, La, Luor Scas raw material. The present oxide luminescent materials activated by trivalent thulium have high stability, color purity and luminous efficiency, and the methods can easily be operated.

Oxide luminescent materials activated by trivalent thulium and their preparations

A kind of germanate luminescence material and its preparation. The germanate luminescence material is a compound of following formula: (YLn)GeO, or Y in the said formula is partly or entirely substituted by at least one of Gd, Lu, Sc and La, and x is 0&#x3c;x&#x2266;0.3, and Ln is one of Ce, Tm, Ho, Sm, Tb, Eu and Dy. The preparation is grinding the raw material, and then sintering at 1300-1500&#xb0; C. for 6-24 h, and cooling the sintered product to room temperature, and obtaining the germanate luminescence material.

Germanate luminescence material and its preparation

A green light-emitting glass and the method of preparing the same are provided. The components with parts by mole of the green light-emitting glass are alkali oxide 25-40, YO0.01-15, SiO40-70, TbO0.01-15. The method of preparing the glass includes mixing alkali salt with YO, SiOand TbO, firing the mixture at 1200&#xb0; C.-1500&#xb0; C. for 1-5 hours, cooling the precursor to the room temperature and annealing the precursor in a reducing atmosphere at 600&#xb0; C.-1200&#xb0; C. for 1-20 hours. A green light-emitting glass with good transparence, high uniformity, easily being made into big bulk and high stability is provided. The process of capsulation of parts by using the glass is simple. And a method of preparing the glass with simple process and low cost is provided.

Green light-emitting glass and method of preparing the same

A full-color light-emitting material and preparation method thereof are provided. A light-emitting material is following general formula compound (YABC)GeO, wherein 0&#x3c;x&#x2266;0.05, 0&#x3c;y&#x2266;0.15, 0&#x3c;z&#x2266;0.15, x:y:z=1:1&#x2dc;10:1&#x2dc;10, A is one of Tm and Ce, B is one of Tb, Ho, Er and Dy, C is one of Eu, Pr and Sm. Preparation method is: grinding the raw material uniformly, then sintering the material at 1300&#x2dc;1500 &#xb0; C. for 6&#x2dc;24 h, cooling down the material to room temperature then getting the product. A full-color light-emitting material which can emit red-green-blue full-color light directly and be adapted for light-emitting device excited in ultraviolet zone without other doped material is provided. And a preparation method having simple process, stable product quality for full-color light-emitting materials is provided.

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Shenzhen, China

Zhaopu Shi