UV Phosphors - CBT
Green Coarse CBT
UV Phosphors - Green Coarse CBT
| General Characteristics of UV Phosphors - Green Coarse CBT |
| Name | Cerium Gadolinium Magnesium Borate:Tb Coarse |
| Chemical Formula | (Ce,Gd)MgB5O10:Tb |
| Application | Green Component Tri-band Phosphor mix high colour rendering fluorescent lamps (Ra>80) |
| Processing | Stirrer or Ball mill |
| Suspension Type | Butyl acetate or Water |
| Packaging | 50 kg in 50 ltr steel drum |
| Optical Characteristics of UV Phosphors - Green Coarse CBT |
| —————— 254 nm excitation —————— |
| » Quantum efficiency | 89% |
| » UV absorption | 93% |
| » Wavelength at peak | 542 nm |
| » Bandwidth (50%) | 9 nm |
| » Excitation peak | 272 nm |
| —————— C.I.E. Chromaticity Coordinates —————— |
| » Powder | x = 0.346 Y = 0.581 |
| » Lamp TLD 36W | x = 0.318 Y = 0.531 |
| —————— Lumen Output 100h (TLD 36W) —————— |
| » Nominal | 4643 lm |
| Physical Characteristics of UV Phosphors - Green Coarse CBT |
| Body Colour | White |
| Specific Gravity | 4.40 |
| Particle Size Distribution | By Laser Diffraction (Sympatec - HELOS) |
| » fraction £ 1.8 µm | 15.0 ± 5% |
| » fraction £ 6.0 µm | 54.0 ± 10% |
| » fraction £ 25.0 µm | ³ 99.0% |
| Crystal Structure | Monoclinic |
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