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公开(公告)号：US11518935B2
公开(公告)日：2022-12-06
申请号：US16612327
申请日：2018-09-13
发明人： Ronghui Liu , Yuanhong Liu , Lei Chen , Ze Jiang , Lengleng Shao
摘要： The present invention belongs to the technical field of inorganic luminescent materials, particularly relates to a nitride fluorescent material, and further discloses a light-emitting device containing such a fluorescent material. The nitride fluorescent material contains a compound with a structure like MmAlxSiyN3: aR, bEu, cCe. The fluorescent material has very high physical stability and chemical stability, and the fluorescent material is better in crystallization, and thus has relatively high external quantum efficiency. When being applied to a light-emitting device, the fluorescent material can fully exert the advantages of good stability and high external quantum efficiency, and the light-emitting efficiency and stability of the light-emitting device can be further improved.
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公开(公告)号：US10385265B2
公开(公告)日：2019-08-20
申请号：US16060548
申请日：2016-12-07
发明人： Ronghui Liu , Guantong Chen , Yuming Jin , Xiaole MA , Yuanhong Liu , Lengleng Shao
摘要： The present disclosure provides a red phosphor powder, a preparation method thereof and a luminescent device comprising the red phosphor powder. The red phosphor powder comprises inorganic compounds containing an element A, an element D, an element X and manganese, wherein element A is one or more selected from a group of Li, Na and K and necessarily includes K; element D is composed of Ge and Si, or element D is composed of Si, Ge and Ti; and element X is one or more selected from a group of F, Br and Cl and necessarily includes F; and the inorganic compound has the same space group structure as K2GeF6, the space group structure being the hexagonal crystal system P-63mc(186). The red phosphor powder has a uniform morphology, a high luminescent efficiency and a good stability.
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3.发明申请公开(公告)号：US20180355243A1
公开(公告)日：2018-12-13
申请号：US16060548
申请日：2016-12-07
发明人： Ronghui Liu , Guantong Chen , Yuming Jin , Xiaole MA , Yuanhong Liu , Lengleng Shao
CPC分类号： C09K11/676 , C09K11/0883 , C09K11/665 , C09K11/666 , C09K11/7734 , H01L33/502 , H01L33/504
摘要： The present disclosure provides a red phosphor powder, a preparation method thereof and a luminescent device comprising the red phosphor powder. The red phosphor powder comprises inorganic compounds containing an element A, an element D, an element X and manganese, wherein element A is one or more selected from a group of Li, Na and K and necessarily includes K; element D is composed of Ge and Si, or element D is composed of Si, Ge and Ti; and element X is one or more selected from a group of F, Br and Cl and necessarily includes F; and the inorganic compound has the same space group structure as K2GeF6, the space group structure being the hexagonal crystal system P-63mc(186). The red phosphor powder has a uniform morphology, a high luminescent efficiency and a good stability.
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