LICHTEMITTIERENDE VORRICHTUNG MIT EINEM MEHRPHASIGEN KERAMIKMATERIAL AUF SIALONBASIS

LICHTEMITTIERENDE VORRICHTUNG MIT EINEM MEHRPHASIGEN KERAMIKMATERIAL AUF SIALONBASIS

The invention relates to a light emitting device comprising a light source, especially a LED, and a luminescent material, which is a ceramic multiphase material essentially of the composition M2−zCezSi5−x−y−(z−z1)Ay+(z−z1)N8−4x−y+z1O4x+y−z1. This material has been found to have a composition of at l...

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Bibliographische Detailangaben
Hauptverfasser: TUECKS, ANDREAS, SCHREINEMACHER, BABY-SERIYATI, SCHMIDT, PETER
Format: Patent
Sprache:ger
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Zusammenfassung:The invention relates to a light emitting device comprising a light source, especially a LED, and a luminescent material, which is a ceramic multiphase material essentially of the composition M2−zCezSi5−x−y−(z−z1)Ay+(z−z1)N8−4x−y+z1O4x+y−z1. This material has been found to have a composition of at least two phases, which leads to a better producibility as well as photostability and conversion efficiency.