Luminescent material, especially for LED application
AssigneeOSRAM Opto Semiconductor GmbH
InventorsAnne Charlotte Antoinette Delsing, Hubertus T. Hintzen, Yuan-Qiang Li
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Abstract
UV-blue excitable green luminescent material including an Eu-doped oxynitride host lattice with general composition MSi2O2N2, wherein M is at least one of an alkaline earth metal chosen from the group Ca, Sr, Ba.
Claims16
A luminescent material, a phosphor for LED-applications, which is excitable in the UV-blue region from 380 to 470 nm, characterized by a Eu-doped host lattice with general composition MSi2O2N2, wherein M is at least one of an alkaline earth metal chosen from the group Ca, Sr, Ba and with a proportion of Eu from 0.1 to 30 mol % of M.
A luminescent material, a phosphor for LED-applications, which is excitable in the UV-blue region from 380 to 470 nm, characterized by a Eu-doped host lattice with general composition M(Si1−x′+Gex′)2O2N2, wherein M is at least one of an alkaline earth metal chosen from the group Ca, Sr, Ba and with a proportion of Eu from 0.1 to 30 mol % of M, and x′ is greater than 0 but no greater than 1.
A luminescent material, a phosphor for LED-applications, which is excitable in the UV-blue region from 380 to 470 nm, characterized by a Eu-doped host lattice with general composition MSi2−x″Alx″O2+x″N2−x″, wherein M is at least one of an alkaline earth metal chosen from the group Ca, Sr, Ba and with a proportion of Eu from 0.1 to 30 mol % of M, and x″ is greater than 0 but no greater than 0.4.
Dependencies are inferred from the claim text.