公开(公告)号：EP2872592A1

公开(公告)日：2015-05-20

申请号：EP13729920.2

申请日：2013-06-14

申请人： Merck Patent GmbH

发明人： VOSGROENE, Tim ,  WINKLER, Holger ,  PETRY, Ralf ,  BENKER, Andreas ,  HAMPEL, Christof

IPC分类号： C09K11/59

CPC分类号： C09K11/7734 ,  C09K11/0883 ,  C09K11/59 ,  H01L33/502

摘要： The present invention relates to a process for production of a europium-doped alkaline earth metal siliconitride or alkaline earth metal silicooxynitride having an increased emission efficiency. The present invention further relates to europium-doped alkaline earth metal siliconitrides and alkaline earth metal silicooxynitrides which are obtainable according to the production process according to the invention, and also to the use of the europium-doped alkaline earth metal siliconitrides and alkaline earth metal silicooxynitrides according to the invention as conversion phosphors. The present invention also further relates to a light-emitting device which contains a europium-doped alkaline earth metal siliconitride or alkaline earth metal silicooxynitride according to the invention.