| 简介 |
FIELD : lighting engineering.
SUBSTANCE : invention relates to the production of luminescent materials used in lighting engineering, as well as in nonlinear optics in a wide spectral range. To obtain boric phosphors, heat treatment of organic salts of rare earth elements is carried out. As a precursor, a mixture of lanthanum oleate and terbium or europium oleate is used, to which a boric acid solution is added in a mixture of octanol and trioctylamine. The resulting mixture is heated first for 1 hour at 200°C, then at a temperature of 550-900°C for 2 hours.
EFFECT : invention makes it possible to simplify the production of lanthanum borates doped with europium or terbium by reducing the number of stages and synthesis time.
1 cl, 8 ex |
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