Composition and luminescence properties of highly robust green-emitting LuAG:Ce/Al <sub>2</sub>O <sub>3</sub> composite phosphor ceramics for high-power solid-state lighting
نویسندگان
چکیده
The major advantage of laser lighting over white light-emitting-diode is the possibility to achieve ultra-high luminance. However, phosphors usually suffer laser-induced luminescence saturation, which limits peak luminance devices. aim present study develop LuAG:Ce/Al2O3 composite ceramics (LACCs) with a high saturation threshold for high-luminance lighting. Owning rigid crystal structure, proper synthetic process, and optimized thermal design, LACCs possess small quenching (16% loss in at 225 ℃), quantum yield (> 95%), excellent properties. When are irradiated by blue diodes reflection mode, luminous flux 4634 lm efficacy 283 lm·W−1 realized. Furthermore, they show no sign even when power density reaches 20.5 W·mm−2. With these favorable properties, designed great potential
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ژورنال
عنوان ژورنال: Journal of Advanced Ceramics
سال: 2023
ISSN: ['2227-8508', '2226-4108']
DOI: https://doi.org/10.26599/jac.2023.9220710