公开(公告)号：US20170012181A1

公开(公告)日：2017-01-12

申请号：US15121317

申请日：2015-02-25

Applicant: DENKA COMPANY LIMITED

Inventor： Hideyuki EMOTO ,  Shinichi YANAGI ,  Masayoshi ICHIKAWA ,  Kazuhiro ITO

IPC: H01L33/50 ,  C09K11/61

CPC classification number: H01L33/502 ,  C09K11/617 ,  H01L33/50 ,  H01L33/501

Abstract: The present invention relates to an Mn4|-activated complex fluoride phosphor with improved moisture resistance due to modification of the particle surface, and a light emitting element and light emitting device having excellent color rendering properties and stability due to the use of this phosphor.The phosphor of the present invention is characterized in that it is represented by the general formula: A2MF6:Mn4−, wherein element A is an alkali metal element comprising at least K, element M is one or more metal elements chosen from among Si, Ge, Sn, Ti, Zr and Hf, F is fluorine, and Mn is manganese, wherein the phosphor comprises a Ca-containing compound on a particle surface.

Abstract translation: 本发明的荧光体的特征在于它由以下通式表示：A2MF6：Mn4-，其中元素A是包含至少K的碱金属元素，元素M是选自Si，Ge中的一种或多种金属元素 ，Sn，Ti，Zr和Hf，F是氟，Mn是锰，其中磷光体包括颗粒表面上的含Ca化合物。

公开(公告)号：US20170009133A1

公开(公告)日：2017-01-12

申请号：US15121318

申请日：2015-02-25

Applicant: DENKA COMPANY LIMITED

Inventor： Hideyuki EMOTO ,  Shinichi YANAGI ,  Masayoshi ICHIKAWA ,  Kazuhiro ITO

IPC: C09K11/61 ,  H01L33/50

CPC classification number: C09K11/617 ,  H01L33/50 ,  H01L33/501 ,  H01L33/502

Abstract: The present invention relates to an Mn4+-activated complex fluoride phosphor with improved moisture resistance due to modification of the particle surface, and a light emitting element and light emitting device having excellent color rendering properties and stability due to the use of this phosphor.The phosphor of the present invention is characterized in that it is represented by the general formula: A2MF6:Mn4+, wherein element A is an alkali metal element comprising at least K, element M is one or more metal elements chosen from among Si, Ge, Sn, Ti, Zr and Hf, F is fluorine, and Mn is manganese, wherein the phosphor comprises Ca in a concentration range of at least 20 ppm and at most 10,000 ppm or Cl in a concentration range of at least 20 ppm and at most 300 ppm.

Abstract translation: 本发明的荧光体的特征在于它由以下通式表示：A2MF6：Mn4 +，其中元素A是至少包含K的碱金属元素，元素M是一种或多种选自Si，Ge， Sn，Ti，Zr和Hf，F是氟，Mn是锰，其中磷光体包含浓度范围为至少20ppm和至多10,000ppm的Ca或至少20ppm的浓度范围的Cl 300 ppm。