Luminophore, method for producing a luminophore and radiation-emitting component

A radiation emitting component comprising:

• a semiconductor chip that emits electromagnetic radiation of a first wavelength range during operation,
• a conversion element comprising a luminophore, which converts electromagnetic radiation of the first wavelength range into electromagnetic radiation of a second wavelength range which is partially different from the first wavelength range,
• wherein the luminophore comprises:
• a host material containing an oxide,
• an activator element comprising a rare earth element having a first valency, and
• wherein the rare earth element has a second valency that is greater than the first valency, and
• wherein the luminophore has the general formula
• (Y, Lu, Gd, Tb)3(Al1-x,Gax)5O12:Cey3+Ce1-y4+
• wherein 0≤x≤1 and 0<y<1

A luminophore, comprising:

• a host material containing an oxide,
• an activator element comprising a rare earth element having a first valency, and
• wherein the rare earth element has a second valency, the second valency being greater than the first valency, and
• wherein the luminophore has the general formula (Y, Lu, Gd, Tb)3(Al1-x,Gax)5O12:Cey3+Ce1-y4+
• wherein 0≤x≤1 and 0<y<1.

A method for producing a luminophore comprising:

• providing a base luminophore comprising:
• a host material containing an oxide, and
• an activator element comprising a rare earth element with a first valency,
• oxidizing of the base luminophore to a luminophore comprising
• the host material containing an oxide,
• the activator element comprising a rare earth element having a first valency, and
• wherein the rare earth element has a second valency, the second valency being greater than the first valency,
• wherein the luminophore has the general formula:
• (Y, Lu, Gd, Tb)3(Al1-x,Gax)5O12:Cey3+Ce1-y4+
• where 0≤x≤1 and 0<y<1.