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US 11,879,084 B2Granted
Phosphate phosphor, light emitting device, and detecting device
AssigneeLextar Electronics Corporation
InventorsChun-Che Lin, Chun-Han Lu, Yi-Ting Tsai, Yu-Chun Lee, Tzong-Liang Tsai
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Abstract
In the present disclosure embodiments, a phosphate phosphor including an activation center of trivalent chromium and a light emitting device are provided. The light emitting device includes a light source and the above mentioned phosphate phosphor, such that the phosphate phosphor is excited by the light source and emits a wide spectrum of the infrared light. The light emitting device with wide emission spectrum of the infrared light may be widely applied in detecting devices.
Claims15
A phosphate phosphor, comprising:
- an activation center of trivalent chromium, wherein the phosphate phosphor emits an infrared light after excitation from a light,
- wherein the phosphate phosphor has a general formula Sr9Sc1-x(PO4)7:xCr3+, and 0<x≤1.
Dependencies are inferred from the claim text.