RE series photoluminescent pigment is sulfide oxide photoluminescent material. The body color of the product is light white and the glowing color is orange red, insoluble in water, weak alkali or weak acid.The physical properties of typical product in RE series photoluminescent pigment are as tabled below:
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PRODUCTS
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REO-1
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pale
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Emitting color
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orange red
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Compositiion
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Re2O2S:Eu （Re -rare earth element）
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Excitation wavelength（nm）
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200-450
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Emission wavelength peak（nm）
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625
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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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≥400
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Afterglow time
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≥2hr
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Light resistance
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≥1000hr
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Chemical stability
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Excellent
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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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No changing of luminescent performance under 250℃
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Density（g/cm3）
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5.1
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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 REO-1
Download： photoluminescent material.pdf |
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