Our advanced strontium aluminate (SrAl2O4) phosphor powders represent the cutting edge in luminescent materials technology. Engineered for exceptional performance across diverse applications, these powders harness the unique properties of the SrAl2O4 host lattice, offering both highly efficient, long-persistent afterglow and robust intrinsic luminescence, tailored to meet your specif needs.
Superior Long Afterglow with Li, Mg Activation
The flagship of our range is Li and Mg co-activated SrAl2O4:Eu2+ powder. Decades of research, solidified by numerous studies, demonstrate that this specific combination creates deep electron traps within the crystal structure. When excited by ambient light (UV to visible), Eu2+ ions emit a characteristic, bright greenish-blue to green light ( peaking around 520nm). Crucially, the trapped electrons release energy slowly over time, resulting in an exceptionally long afterglow duration that can persist for hours in darkness after the excitation source is removed. This phenomenon makes our activated powder the premier choice for safety signage, emergency pathway making, watch dials, decorative items, and any application requiring reliable, self-sustained illumination without continuous power input. Its excellent chemical stability, non-radioactive nature, and resistant to moisture far surpas older sulfide-based phosphors.
Pure SrAl2O4: Reliable Host Luminescence
Alongside our activated products, we offer high-purity SrAl2O4 powder. While lacking the deep traps for ultra-long persistence, pure SrAl2O4 exhibits its own valuable luminescent properties. When doped with suitable activators like Eu2+ (even without Li / Mg), it serves as an efficient phosphor host. Under UV excitation, it can emit a broad band of light, the exact color tunable based on the specific dopant and concentration. Pure SrAl2O4 powder is also valued in research, speciality ceramics, and as a foundational material for developing novel phosphors or composite materials where its inherent properties are beneficial.
Designed for Performance and integration
We meticulously control particle size distribution, morphology, and surface characteristics to ensure optimal performance in your specific formulation, whether dispersed in polymers, paints, inks, ceramics, or glasses. Our powders offer high quantum efficiency, excellent thermal and chemical stability, and consistent batch-to-batch quality. Research consistently highlights SrAl2O4-based materials for their brightness, longevity, and environmental safety profile.
Applications Spanning Industries
- Safety & Security : Glow-in-the-dark exit signs, emergency escape routes, obstacle marking.
- Consumer Goods : Novelty items, toys, watch and instrument dials, decorative arts.
- Textiles & Apparel : Luminescent fibers and fabrics for safety wear or fashion.
- Paints & Coatings : Functional and decorative luminous paints for interiors, exteriors, and specialty uses.
- Advanced Materials : Components in sensors, optoelectronic devices, and persistent energy storage research.
- Ceramics & Glass : Specialty glazes and glass formulations.
Choose Excellence in Luminescence
Whether you require the unparalleled afterglow of our Li, Mg-activated SrAl2O4:Eu2+ for safety-critical applications or the reliable luminescent properties of pure or custom-doped SrAl2O4 for specialized needs, our powders deliver proven performance backed by solid scientific research. We are committed to providing high-quality, consistent materials and technical support to illuminate your next innovative product.