FIELD: chemistry.
SUBSTANCE: colourless phosphorescing red glowing phosphor Eu(L2)3 is a product of reacting a europium (III) compound with [2-(aminocarbonyl)phenoxy]acetic acid (HL2) and subsequent vacuum drying in a furnace at residual pressure of 20 Pa. Said phosphor has phosphorescence maximum at 18636, 14360, 16180, 16860 cm-1 and provides considerable intensity of red luminescence which is 40.43 times higher than quantum efficiency of luminescence compared to existing colourless phosphorescing red glowing phosphor - a compound of europium (III) with salicylic acid.
EFFECT: improved properties.
1 dwg, 1 ex
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