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LuAG Green-Emitting Garnet Phosphor
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PHOSPHOR SELECTION AND QUOTATION SUPPORT
For emission-peak selection, particle-size confirmation and quotation support, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This phosphor powder requires protection from moisture and direct light to maintain its luminescent properties. Airborne dust must be minimized during transfer, and appropriate laboratory protective equipment should be used.
- Moisture Protection: Store in a sealed container under dry conditions to prevent moisture absorption.
- Light Protection: Protect the powder from direct light exposure during storage and handling.
- Dust Control: Minimize airborne dust generation during transfer operations.
- Personal Protective Equipment: Use suitable laboratory protective equipment, including gloves and dust mask, when handling.
What is the excitation wavelength range for LuAG green-emitting garnet phosphor and how does it constrain LED chip selection?
The LuAG phosphor is designed for excitation by blue LED chips operating within 440–470 nm. This narrow excitation window means that only blue LEDs with a peak emission in that range will efficiently pump the phosphor; chips outside this band, such as near-UV or deep-blue LEDs, will result in significantly lower conversion efficiency. The product description explicitly states compatibility with 440–470 nm chips, so engineers must verify their LED source matches this range.
How do the emission peak and dominant wavelength ranges affect color-point targeting for display backlighting versus general illumination?
The phosphor offers emission peak ranges of 499–535 nm and 515–545 nm depending on grade, with a dominant wavelength of 524–558 nm and CIE x=0.328–0.377, y=0.567–0.577. For display backlighting, a narrower green emission near 530 nm with tighter chromaticity is typically required to achieve wide color gamut, while general illumination can tolerate broader ranges. The selectable grades allow matching to specific application needs, but the full width at half maximum of 95–105 nm means the spectral profile is relatively broad, which may limit color purity in high-end displays.
What handling and storage precautions are required for LuAG phosphor powder to maintain quantum efficiency?
The phosphor must be kept sealed, dry, and protected from direct light to prevent moisture absorption and photodegradation, which can reduce quantum efficiency from the stated 80–92% range. During transfer, airborne dust should be minimized using suitable laboratory protective equipment, and applicable safety documentation must be reviewed before handling. These precautions are critical because the powder's median particle size of 12–25 µm makes it prone to airborne dispersion and moisture uptake.
LuAG green-emitting garnet phosphor powder excitable by 440–470 nm blue LEDs, offering selectable emission peaks (499–545 nm), dominant wavelength 524–558 nm, FWHM 95–105 nm, CIE coordinates x=0.328–0.377/y=0.567–0.577, D50 12–25 µm, and quantum efficiency 80–92%. Requires sealed, dry, light-protected storage and dust-control handling.
Positive
- Blue-LED excitation compatibility: Excitable by standard 440–470 nm blue LED chips, enabling straightforward integration into common LED-based systems for wavelength conversion.
- High quantum efficiency: Available grades achieve 80–92% quantum efficiency, supporting efficient wavelength conversion for lighting and display applications.
Trade-offs
- Moisture and light sensitivity: The phosphor must be kept sealed, dry, and protected from direct light to maintain performance, requiring careful storage and handling conditions.
- Dust management required: Airborne dust must be minimized during transfer, necessitating appropriate laboratory protective equipment and dust-control measures to ensure safe handling.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
