Phosphors

Rare-earth element based phosphors for electric lamp, television and special industries are made by the high-temperature synthesis method.

Parameters

Л-43(Л-50)

Chemical composition

Yttrium phosphate-vanadate activated by Tb, Eu

Glow color

Red

Luminescence brightness with relation to test specimen luminescence brightness, %

100

Grain-size analysis, mass fraction of particles, %, sizes:
- less than 6 μm
 - less than 15 μm
 - more than 6 μm

not less than 20
not less than 90
-

Chromaticity coordinates
- Х
- Y

-
-

Heat resistance in vacuum, % of luminescence brightness reduction in excitation on wavelength:
λ -254 nm
λ-365 nm

not more than 6
not more than 7

Appearance

Crystalline powder of white color with pink tints