| abstract |
The invention relates to a novel red emitting material of (Ba1-x-y-zSrxCayEuz)2Si5-a-bAlaN8-a-4bOa+4b having an average particle size distribution d50 of ≥ 6 μ m, with 0.3 ≤ x ≤ 0.9, 0.01 ≤ y ≤ 0.1, 0.005 ≤ z ≤ 0.04, 0 ≤ a ≤ 0.2 and 0 ≤ b ≤ 0.2. |