abstract |
The present invention formula (I) (Ca, Sr, Ba) 6-x (Si 1 - y Me y) 3 (O 1 - z Ma 2z) 6 N 4: Eu x ( wherein, Me = Th, Ru and And / or compounds of Os, Ma = F and / or Cl, x <0.5, y <1 and z <0.1), and methods of making these compounds and conversion for conversion of blue or near-UV emissions from phosphors or LEDs It relates to the use as a phosphor. |