R series photoluminescent pigment is sulfide photoluminescent material. The features of the product are fast light absorption, bright body color and glowing color. The product should be preserved in well closed containers and protected from light due to the deliquescence in air and decomposition under ultraviolet light. R series photoluminescent pigment includes RR and RO types.the physical properties are as tabled below:
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PRODUCTS
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RR
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RO
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red
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orange
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Emitting color
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red
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orange red
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Compositiion
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(Ca1-XSrX)S:Eu (x=0-1.0)
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Excitation wavelength（nm）
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400-580
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Emission wavelength peak（nm）
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650
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630
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Medium Particle size（μm）⑴
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20-40
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Afterglow brightness（mcd/m2）⑵
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≥45
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≥95
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Afterglow time
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≥1h
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≥1h
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Light resistance
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≥100h
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≥100h
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Chemical stability
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Deliquescent
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Allowable temperature
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No changing of luminescent performance under 200℃
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Density（g/cm3）
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3.1
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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 1 min excited by D65 standard light source illumination of 1000LX for 5 min.
Excitation and emission spectra of RR
Excitation and emission spectra of RO
Download： photoluminescent material.pdf |
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