Premium Blue Phosphor
for UV LED & Biomedical
Complete blue phosphor portfolio featuring UV-excitable aluminate series and upconversion fluoride phosphor for UV-LED lighting, display backlighting, anti-counterfeiting, and biomedical fluorescence applications.
Blue Phosphor Application Challenges
Understanding the key technical challenges in UV-LED and biomedical applications
Color Purity
Achieving pure blue output with narrow bandwidth is critical for display color gamut. Wide FWHM results in color bleeding and poor saturation.
UV Chip Compatibility
Standard phosphors designed for blue chips don't perform well under UV excitation. Specialized UV-optimized phosphors are required for 360-390nm chips.
Biomedical Sensitivity
Traditional fluorescence suffers from high background noise. Upconversion phosphors with NIR excitation offer superior signal-to-noise ratio.
Particle Size Control
Consistent particle size distribution is essential for uniform dispensing and coating. Tight D50 tolerance ensures batch-to-batch reproducibility.
Complete Blue Phosphor Series
From UV-excitable aluminate to upconversion fluoride, meeting all lighting and biomedical requirements
DL-450UV — UV-Excitable Aluminate Blue
360-390nm UV excitation · 450nm pure blue output · Narrow 51.7nm FWHM
| Model | Peak λ | FWHM | D50 | CIE Coord. | Excitation |
|---|---|---|---|---|---|
| DL-450UV | 450±1nm | 51.7nm | 7±0.5μm | (0.1447, 0.0636) | 360-390nm UV |
DL-450UV features narrow 51.7nm FWHM for excellent color purity in UV-LED applications
Key Performance Data
Aluminate crystal structure provides: excellent UV excitation efficiency optimized for 360-390nm chips, narrow bandwidth (51.7nm FWHM) for high color purity, white powder appearance for easy process control, and 12-month shelf life under proper storage conditions.
DL-450UV is specifically designed for UV LED chips (360-390nm). Its narrow 51.7nm FWHM delivers excellent color purity ideal for high color gamut displays. For blue chip (450-460nm) applications, consider YAG or LD series yellow/green phosphors instead. The tight D50 tolerance of 7±0.5μm ensures consistent dispensing performance.
LD-980-B — Upconversion Fluoride Blue
980nm NIR excitation · 478nm blue emission · Ultra-fine 7μm particles
| Model | Peak λ | Type | D50 | Powder Color | Excitation |
|---|---|---|---|---|---|
| LD-980-B | 478±1nm | Upconversion | 7±0.5μm | White | 980nm NIR |
LD-980-B upconversion phosphor converts 980nm NIR to 478nm blue light with minimal background interference
Key Performance Data
Fluoride-based upconversion mechanism provides: minimal background interference — NIR excitation avoids biological autofluorescence, deep tissue penetration — NIR light penetrates several millimeters into tissue, excellent photostability — resistant to photobleaching for long-term observation, and low phonon energy (~350 cm⁻¹) for high upconversion efficiency.
LD-980-B is ideal for biomedical fluorescence labeling, immunoassays, and anti-counterfeiting applications. The 7μm ultra-fine particles offer excellent dispersibility for bio-conjugation. For biological applications, surface modification (PEG, carboxyl, amino groups) is recommended to improve water solubility and biocompatibility. Standard excitation uses 980nm NIR laser at 0.1-10 W/cm² power density.
| Feature | DL-450UV | LD-980-B |
|---|---|---|
| Material System | Aluminate | Fluoride |
| Excitation Wavelength | 360-390nm UV | 980nm NIR |
| Emission Wavelength | 450nm | 478nm |
| Emission Type | Down-conversion | Upconversion |
| FWHM | 51.7nm (Narrow) | — |
| Particle Size D50 | 7±0.5μm | 7±0.5μm |
| Background Noise | Normal | Extremely Low |
| Best Applications | UV-LED, Display, Anti-fake | Biomedical, Sensors |
Need Custom Surface Modification?
Our engineers can provide customized surface modification services including carboxylation, amination, PEG coating, and bio-conjugation protocols for your specific application requirements.
Key Advantages
What sets our blue phosphors apart from the competition
Dual Technology Platform
Both down-conversion (UV-excitable) and upconversion (NIR-excitable) blue phosphors — one supplier for all your blue emission needs.
Precision Particle Control
Tight D50 tolerance of 7±0.5μm ensures consistent dispensing, coating uniformity, and batch-to-batch reproducibility.
Narrow Bandwidth Option
DL-450UV delivers 51.7nm FWHM — excellent color purity for high color gamut display applications.
Custom Modification Service
Surface functionalization, bio-conjugation protocols, and excitation system design support for biomedical applications.
Where Our Blue Phosphors Excel
Proven performance across demanding lighting, display, and biomedical applications
UV-LED Lighting
UV-LED general illumination, specialty lighting, and curing indicator lights. DL-450UV delivers pure blue under 360-390nm UV chip excitation.
Display Backlighting
LCD backlight modules, wide color gamut displays, and specialty visual systems requiring high color purity blue emission.
Anti-Counterfeiting & Security
Currency verification, document authentication, high-security labels, and invisible watermarks with UV-excitable blue phosphor.
Biomedical Detection
Immunoassays, cell labeling, tissue imaging, and molecular detection. LD-980-B upconversion offers superior signal-to-noise ratio.
Fluorescent Probes & Sensors
Environmental monitoring, chemical sensing, temperature detection, and biosensors utilizing upconversion luminescence.
Research & Analysis
Fluorescence microscopy, flow cytometry, spectral analysis standards, and materials science research applications.
Test Before You Commit
Request a free phosphor sample kit to evaluate spectral performance, particle distribution, and process compatibility in your production environment.
Consistent Quality You Can Trust
Strict quality control ensures batch-to-batch consistency
Every batch undergoes rigorous testing using fluorescence spectrometer and laser particle size analyzer. We guarantee CIE color coordinate deviation ≤0.003 and particle size variation ≤5% between batches. All products come with detailed COA and full traceability. Aluminate phosphors are moisture-sensitive — proper sealed storage at ≤25°C, ≤60%RH is recommended.
Ready to Enhance Your Application?
Contact us for free consultation and samples
Free Application Design
Our engineers help design optimal phosphor selection and excitation system for your target application requirements
Free Sample Testing
Evaluate spectral performance, particle distribution, and process compatibility before volume orders
Fast Delivery
50-100g samples shipped worldwide within 3 business days with tracking
24h Response
Dedicated technical support team responds within 24 hours to all inquiries
Note: All technical data comes from standard fluorescence spectrometer and laser particle size analyzer testing. Aluminate phosphors (DL-450UV) are moisture-sensitive — store in sealed containers at ≤25°C, ≤60%RH. Fluoride upconversion phosphors (LD-980-B) should avoid strong acids/bases (pH 6-8 recommended). Contact our engineers for professional application solution design.