Table 1 Structural and luminescence properties of europium doped MSi 2 O 2 N 2 phosphors
From: Evaluating the use of blue phosphors in white LEDs: the case of Sr0.25Ba0.75Si2O2N2:Eu2+
Host material | Space group | # cation sites | λmax(RT) (nm) | FWHM (RT) (nm) | QE (RT) int/ext | τ (μs) | T0.5(K) | Refs. |
|---|---|---|---|---|---|---|---|---|
CaSi 2 O 2 N 2 | P 21 | 6 | 555 | 106 | 76/- | 1.00 | 440 | |
SrSi 2 O 2 N 2 (triclinic) | P 1 | 4 | 538 | 76 | 91/- | 1.15 | 600 | |
SrSi 2 O 2 N 2 (monoclinic) | P 21 | 4 | 532 | 75 | -/- | - | - | [18] |
Sr 0.25 Ba 0.75 Si 2 O 2 N 2 (triclinic) | P 1 | 4 | 564 | 95 | 66/- | - | - | [7] |
Sr 0.25 Ba 0.75 Si 2 O 2 N 2 (orthorhombic) | Pna 21 | 1 | 467 | 41 | 41/30 | 0.35 | 545 | [19], this work |
BaSi 2 O 2 N 2 | Cmc 21 | 1 | 495 | 32 | 71/- | 0.47 | 600 | |
EuSi 2 O 2 N 2 | P 1 | 4 | 568 | 120 | -/- | - | - |