Luminophore, method for the production of a luminophore and radiation-emitting component
Assigneeams-OSRAM International GmbH
InventorsFrauke PHILIPP, Juliane KECHELE, Christiane STOLL, Simon DALLMEIR, Gina Maya ACHRAINER, Daniel BICHLER, Johanna STRUBE-KNYRIM, Mark VORSTHOVE
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Abstract
A luminophore has the general formula EA2−xRExSi5−x−yAlx+yN8−yOy:A, where 0<x≤2 and 0≤y≤2, EA is an element or a combination of elements from the group of alkaline earth elements, RE is an element or a combination of elements from the group of rare earth elements, and A is an activator element. A method for the production of a luminophore and a radiation-emitting component are further disclosed.
Claims20
A luminophore with the general formula
- EA2−xRExSi5−x−yAlx+yN8−yOy:A
- wherein
- 0.2
- <
- x
- ≤
- 2
-
- and
-
- 0
- ≤
- y
- ≤
- 2
- ,
- EA is an element or a combination of elements from the group Ba and Sr,
- RE is an element or a combination of elements from the group formed by scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium, and
- A is an activator element.
The luminophore with the general formula
- EA2−xRExSi5−x−yAlx+yN8−yOy:A
- wherein
- 0
- <
- x
- ≤
- 2
-
- and
-
- 0
- ≤
- y
- ≤
- 2
- ,
- EA is an element or a combination of elements from a group of alkaline earth elements,
- RE is an element or a combination of elements from a group formed by scandium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium,
- A is an activator element, and
- an electromagnetic radiation emitted by the luminophore has an emission maximum of at least one emission peak between 550 nm inclusive and 620 nm inclusive.
(canceled)
A method for the production of a luminophore having the general formula
- EA2−xRExSi5−x−yAlx+yN8−yOy:A
- wherein
- 0.2
- <
- x
- ≤
- 2
-
- and
-
- 0
- ≤
- y
- ≤
- 2
- ,
- EA is an element or a combination of elements from the group Ba and Sr,
- RE is an element or a combination of elements from the group formed by scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium, and
- A is an activator element,
- wherein the method comprises:
- providing reactants,
- mixing the reactants to form a reactant mixture, and
- heating the reactant mixture.
The method according to 14, wherein the reactant mixture is heated under N2 atmosphere or forming gas atmosphere.
Dependencies are inferred from the claim text.