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US 2024/0327706 A1Published application
Oxonitridoberyllosilicate phosphors
AssigneeLumileds LLC
InventorsTobias GIFTTHALER, Philipp-Jean STROBEL, Peter Josef SCHMIDT, Hans-Helmut BECHTEL, Wolfgang SCHNICK
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Abstract
A family of optionally substituted oxonitridoberyllosilicate photoluminescent compositions (i.e., phosphors) is characterized by the formula AE1−x−y−uAy+uBe1−y−z−vBy+z+vSi1−z AlzO1−vN2+v: Eux,Ceu, where AE=Ba, Sr, Ca, Mg; A=Li, Na, K, Rb; 0≤x≤0.1; 0≤ u≤0.1; 0<(x+u); 0≤y≤1; 0≤z≤1; (y+z+v)≤1; and (x+y+u)≤1. These phosphors may be used in phosphor converted LEDs which may be advantageously employed in illumination and display applications, for example.
Claims20
A photoluminescent composition characterized by:
- AE1−x−y−uAy+uBe1−y−z−vBy+z+vSi1−zAlzO1−vN2+v:
- Eux,Ceu;
- AE=Ba, Sr, Ca, Mg;
- A=Li, Na, K, Rb;
- 0
- ≤
- x
- ≤
- 0.1
- ;
- 0
- ≤
- u
- ≤
- 0.1
- ;
- 0
- <
- (
- x
- +
- u
- )
- ;
- 0
- ≤
- y
- ≤
- 1
- ;
- 0
- ≤
- z
- ≤
- 1
- ;
- (
- y
- +
- z
- +
- v
- )
- ≤
- 1
- ;
- and
- (
- x
- +
- y
- +
- u
- )
- ≤
- 1.
53 more elements
Dependencies are inferred from the claim text.