Beijing Yuji Science and Technology Co. Ltd

Peng Bao

Haisong Wang

Xiaoling Zhang

Xiangyang Lin

A nitrogen compound luminescent material belongs to the field of LED inorganic luminescent materials. The nitrogen compound luminescent material has a chemical formula: MEuAlSiCN. In the formula, M represents one or several of Li, Mg, Ca, Sr and Ba; 0&#x3c;x&#x2266;0.2, 0&#x3c;y&#x2266;0.5; and C represents the element Carbon. The luminescent material can be excited by ultraviolet, near ultraviolet or blue excitation light source such as LED, and emits red light with wavelength between 500-800nm, especially the maximum emission wavelength between 600-700 nm, exhibiting a wider excitation spectrum range, efficiency and stability. The corresponding method of the preparation is simple, easy to mass production and pollution-free. By using the luminescence material, and with ultraviolet, near ultraviolet or blue LED and other luminescent materials such as green fluorescent powder, a white LED light source can be provided.

Light-emitting material of nitrogen compound, preparation process thereof and illumination source manufactured therefrom

The present invention relates to semiconductor field, especially relates to an oxynitride luminescent material, preparation method and its application. The oxynitride has a chemical formula of ABON:R, wherein A is one or more elements selected from the group consisting of Be, Mg, Ca, Sr, Ba, and Zn; B is one or more elements selected from the group consisting of Si, Ge, Zr, Ti, B, Al, Ga, In, Li, and Na, and at least contains Si. The oxynitride luminescent material according to the invention is excellent in chemical stability and luminescence property, and act as cyan to red luminescent material applicable to white light LED that excited by ultraviolet or blue light LED. Its excited wavelength is between 300-500 nm, while the emission wavelength at 470-700 nm. With blue or ultraviolet or near-ultraviolet LED, this type of material can be used to produce white light illumination or display light source.

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Beijing, China

Peng Bao