Yellow-green to yellow-emitting phosphors based on terbium-containing aluminates

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United States of America Patent

PATENT NO 9120975
SERIAL NO

14513133

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Abstract

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Yellow-green to yellow-emitting, lutetium aluminate-based terbium (Tb) containing phosphors for use in white LEDs, general lighting, and LED and backlighting displays are disclosed herein. The phosphor may further contain gadolinium (Gd). In one embodiment of the present invention, the phosphor comprises a cerium-activated, yellow-green to yellow-emitting lutetium aluminate-based phosphor having the formula (Lu1-xAx)3Al5O12:Ce wherein A is at least one of Gd and Tb and 0.1≦x≦1.0, wherein the phosphor is configured to emit light having a peak emission wavelength ranging from about 550 nm to about 565 nm, and wherein the phosphor contains at least some Tb.

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Patent Owner(s)

Patent OwnerAddress
INTEMATIX CORPORATION46430 FREMONT BLVD FREMONT CA 94538

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duan, Chengjun Changshu, CN 3 8
Gu, Jingtao Shanghai, CN 5 24
Li, Yi-Qun Danville, US 235 5928

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