Shenzhen Polytechnic

Yuqing Tong

Jianwei Han

Xingren Liu

The invention provides a red fluorescent material of which the chemical formula is (LiMM)(GdEuLn)(MoO)(WO)(A). The invention further provides a preparation method of the red fluorescent material, and an electric light source prepared from the red fluorescent material and a preparation method of the electric light source. The invention has the beneficial effect that the red fluorescent material uses Euions as the main activator; under the excitation of near ultraviolet light or blue light emitted by a semiconductor LED chip, the red fluorescent material has high light conversion efficiency, and emits light in a mode of red sharp lines of characteristic 4f electron-configurationD&#x2212;&#x3e;Fenergy level transition of Eu; and the red fluorescent material has high color purity, high emissive power and stable performance.

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Guangdong, China

Yuqing Tong