WAVELENGTH CONVERSION MATERIAL, ITS MANUFACTURING METHOD, AND LIGHT EMITTING DEVICE USING IT

PROBLEM TO BE SOLVED: To provide a novel fluorophor exerting blue to red color emission by near-ultraviolet excitation. SOLUTION: This fluorophor which emits light by irradiation of a near-ultraviolet ray is represented by general formula (1); A2-xBxO1+xN2-x:RE wherein A is at least one kind of elem...

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Hauptverfasser: SATO HIROYUKI, AKAGI TSUTOMU
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a novel fluorophor exerting blue to red color emission by near-ultraviolet excitation. SOLUTION: This fluorophor which emits light by irradiation of a near-ultraviolet ray is represented by general formula (1); A2-xBxO1+xN2-x:RE wherein A is at least one kind of element selected from the group consisting of Si, Ge, and C; B is at least one kind of element selected from the group consisting of A1, Ga, B, and In; RE is at least one kind of element selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Mn; and x represents a number satisfying 0≤x