Oxide stannate luminescent material and preparation method thereof
AssigneeOcean's King Lighting Science & Technology Co., Ltd.
InventorsMingjie Zhou, Xiaofang Liang, Wenbo Ma
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Abstract
A luminescent material and a preparation method thereof are provided. The said luminescent material is represented by the following chemical formula: Ln2−EuxSn2O7, wherein Ln is selected from one of Gd, Y and La, 0.1≦x≦1.5. The said luminescent material has good electrical performance, anti-electron bombardment and stable luminescent property. It is appropriate to be used in field emission light-emitting devices. The said preparation method has simple technique, no pollution, manageable process conditions, low preparation temperature and low equipment requirement, and is beneficial to industry production.
Claims7
An oxide stannate luminescent material, which is represented by the following chemical formula:
- Ln2−xEuxSn2O7, wherein Ln is a metal selected from the group consisting of Gd, Y and La, and the scope of x is:
A preparation method of an oxide stannate luminescent material, comprising the steps of:
- S1, providing raw materials of Ln compound, Eu compound and Sn compound according to the mole ratio of each element of the chemical formula Ln2−xEuxSn2O7, grinding and uniform mixing to form a mixture;
- wherein Ln is a metal selected from the group consisting of Gd, Y and La, and the scope of x is:
- S2, pre-roasting the mixture for 3 to 5 hours under temperature of 300° C. to 500° C., cooling to room-temperature, then grinding into mixing powder;
- S3, roasting the mixing powder for 1 to 24 hours under temperature of 1200° C. to 1400° C., cooling to room-temperature, grinding, and obtaining the oxide stannate luminescent material.
Dependencies are inferred from the claim text.