PL series photoluminescent pigment is alkaline earth aluminate photoluminescent material created by our company in 1992 and has been exported to manycountries and regions after the invention patents are granted. These products can glow more than 12 hours after absorbing various visible light or ultraviolet radiation. The luminance is 350-700mcd/m2 and afterglow is more than 12 hours, it’sdozens of times more than that of traditional ZnS phosphor. PL series photoluminescent pigment includes PLO, PLB and PLP type.the physical properties are as tabled below:
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PRODUCTS
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PLO
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PLB
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PLP
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Body Color
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light yellow
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light green
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light gray
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Emitting color
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yellow green
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blue green
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blue purple
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Composition
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MeO·xAl2O3:Eu (Me=Ca、Mg、Sr；x=0.5-2.0)
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Excitation wavelength（nm）
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200-450
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250-450
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250-400
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Emission wavelength peak（nm）
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520
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490
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440
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Medium Particle size（μm）⑴
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1-100
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1-100
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20-40
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Afterglow brightness（mcd/m2）⑵
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100-600
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100-500
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10-20
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Afterglow time
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≥12 h
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≥12 h
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≥6 h
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Light resistance
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≥1000 h
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≥1000 h
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≥1000 h
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Chemical stability
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Excellent, Slowly decomposed in water (The product can be waterproof by further treatment)
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Temperature resistance
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Luminescent brightness is weaken along with the elevated temperature and extended time during 250-600℃
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Allowable temperature
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≦250℃
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Density（g/cm3）
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3.6
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⑴The unit of particle size is μm. The particle size is expressed by Medium Particle size (D50).
⑵The unit of afterglow brightness is mcd/m2. All the tests are executed according to the standard of DIN67510, which is to detect afterglow brightness of the sample for 10 min excited by D65 standard light source illumination of 1000LX for 5 min.
Excitation and emission spectra of PLO
Excitation and emission spectra of PLB
Excitation and emission spectra of PLP
Download： photoluminescent material.pdf |
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