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公开(公告)号：US11485907B2
公开(公告)日：2022-11-01
申请号：US16469114
申请日：2018-09-29
发明人： Ronghui Liu , Yuanhong Liu , Xia Zhang , Wei Gao , Xiaole Ma , Huibing Xu
摘要： The present disclosure relates to the technical field of luminescent materials, and more particularly, to a nitride luminescent material and a light emitting device comprising the luminescent material. The nitride luminescent material recited in the present disclosure includes an inorganic compound with the structural composition RwQxSiyNz, the excitation wavelength of the luminescent material is between 300-650 nm, and the emission main peak of the NIR light region is broadband emission between 900-1100 nm; the excitation wavelength of the luminescent material is relatively broad and capable of excellent absorption of ultraviolet visible light, and has more intensive NIR emission as compared with NIR organic luminescent materials and inorganic luminescent materials of other systems, so it is an ideal application material for NIR devices.
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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：US11299672B2
公开(公告)日：2022-04-12
申请号：US16612315
申请日：2018-09-13
发明人： Ronghui Liu , Xiaoxia Chen , Yuanhong Liu , Yanfeng Li , Xiaole Ma
摘要： The near-infrared luminescent material is capable of efficiently emitting near-infrared light with a peak wavelength of 900 nm to 1,100 nm under an effective excitation wavelength of 250 nm to 750 nm. The luminescent material has the characteristics of wide excitation emission wavelength, high luminous efficiency, uniform luminescence, no impurity phase, high stability, simple preparation and the like. The present invention further provides the light-emitting device prepared from the near-infrared luminescent material. The luminescent material and the light-emitting device provided by the present invention solve the problems of poor stability, low luminous efficiency, high preparation cost and the like of a conventional near-infrared luminescent material and light-emitting device, and have a favorable application prospect.
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公开(公告)号：US11923485B2
公开(公告)日：2024-03-05
申请号：US17254228
申请日：2019-08-22
发明人： Ronghui Liu , Yuanhong Liu , Xiaoxia Chen , Yuan Xue , Xiaole Ma
CPC分类号： H01L33/504 , C09K11/7708 , C09K11/77347 , C09K11/77348 , C09K11/7774 , C09K11/7776
摘要： An optical device includes an LED chip, a visible-light luminescent material, and a near-infrared luminescent material, wherein a luminous power of light emitted by the near-infrared and visible-light luminescent materials in a band of 650-1000 nm under the excitation of the LED chip is A, and a sum of a luminous power of light emitted by the near-infrared and visible-light luminescent materials in a band of 350-650 nm under the excitation of the LED chip and a luminous power of residual light emitted by the LED chip in the band of 350-650 nm after the LED chip excites the near-infrared and visible-light luminescent materials is B, with B/A*100% being 0.1%-10%. According to the implementation where the optical device employs the LED chip to combine the near-infrared luminescent material and the visible-light luminescent material simultaneously.
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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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公开(公告)号：US09671086B2
公开(公告)日：2017-06-06
申请号：US14443053
申请日：2013-12-20
发明人： Ronghui Liu , Yuanhong Liu , Huaqiang He , Xiaowei Huang , Wei Gao , Tao He , Yunsheng Hu , Weidong Zhuang
IPC分类号： C09K11/00 , F21V9/16 , C09K11/08 , C09K11/77 , H05B33/14 , F21K9/64 , H01L33/50 , F21Y115/10
CPC分类号： F21V9/16 , C09K11/0883 , C09K11/7734 , C09K11/7792 , F21K9/64 , F21V9/30 , F21Y2115/10 , H01L33/502 , H05B33/14 , Y02B20/181
摘要： An oxynitride orange-red fluorescent substance and a light-emitting film or sheet and a light-emitting device comprising the same are disclosed. The chemical formula of the oxynitride orange-red fluorescent substance is MmAaSixNyOz:dR in which the element M is one or more of the elements selected from Ca, Sr and Ba, the element A is Al or a mixture of Al with one or more of the elements selected from Ga, La, Sc and Y, the element R is one or more of the elements selected from Ce, Eu and Mn, 0.8≦m≦1.2, 1
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公开(公告)号：US20160145489A1
公开(公告)日：2016-05-26
申请号：US14900198
申请日：2014-06-20
发明人： Ronghui Liu , Huibing Xu , Xiaofang Zhou , Chunlei Zhao , Qian Ma , Yuanhong Liu , Huaqiang He , Xiaowei Huang
CPC分类号： C09K11/7792 , C09K11/0883 , C09K11/7721 , C09K11/7734 , C09K11/7749 , C09K11/7773 , C09K11/7774 , H01L33/504
摘要： The present disclosure relates to a fluorescent powder and a light-emitting device including the same. The fluorescent powder includes an inorganic compound. The inorganic compound contains components including an element M, an element A, an element D, an element E, and an element R. The element M is selected from Eu, Ce, Mn, Tb, Dy, and Tm, the element A is selected from Mg, Ca, Sr, and Ba, the element D is selected from B, Al, Ga, In, La, Gd, Sc, Lu, and Y, the element E is selected from Si, Ge, Zr, and Hf, and the element R is at least two elements selected from N, O, F, and Cl. In a powder X-Ray Diffraction (XRD) spectrum with CoKα radiation, the inorganic compound at least has diffraction peaks within ranges of an Bragg angle (2θ) from 27.3° to 28.3°, 29.7° to 30.7°, 41.9° to 42.9°, and 43.5° to 44.5°.
摘要翻译： 本发明涉及一种荧光粉和包含该荧光粉的发光装置。 荧光粉包括无机化合物。 无机化合物含有包含元素M，元素A，元素D，元素E和元素R的成分。元素M选自Eu，Ce，Mn，Tb，Dy和Tm，元素A为 选自Mg，Ca，Sr和Ba，元素D选自B，Al，Ga，In，La，Gd，Sc，Lu和Y，元素E选自Si，Ge，Zr和Hf 元素R为选自N，O，F和Cl中的至少两种元素。 在具有CoKα辐射的粉末X射线衍射（XRD）光谱中，无机化合物至少在从27.3°至28.3°，29.7°至30.7°，41.9°至42.9°的布拉格角（2θ）范围内具有衍射峰 °，43.5°〜44.5°。
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8.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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公开(公告)号：US11932793B2
公开(公告)日：2024-03-19
申请号：US17748789
申请日：2022-05-19
申请人： GRIREM ADVANCED MATERIALS CO., LTD. , GRIREM HI-TECH CO., LTD. , Rare Earth Functional Materials (Xiong'an) Innovation Center Co., Ltd.
发明人： Ronghui Liu , Shaowei Qin , Yuanhong Liu , Yanfeng Li , Xiaoxia Chen , Xiaole Ma , Yuan Xue
CPC分类号： C09K11/7774 , C09K11/02 , H01L33/502 , C01P2004/84
摘要： The invention relates to a phosphor with garnet structure and a light-emitting device comprising the phosphor, wherein the phosphor includes the following components in percentage by weight: 38.47-45.19% of Y element, 9.49-22.09% of Al element, 2.06-24.31% of Ga element, 27.3-32.04% of O element, 0.43-1.46% of Ce element. In the phosphor particles, the shortest distance from the surface of one side of the particle to the surface of the opposite side through the centroid of the particle is defined as R, the longest distance is R1, and 5 μm≤R≤40 μm; any distance from the particle surface to the centroid is r, and 0
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10.发明授权公开(公告)号：US11932790B2
公开(公告)日：2024-03-19
申请号：US17254224
申请日：2019-07-09
发明人： Xiaoxia Chen , Yuanhong Liu , Ronghui Liu , Yuan Xue
CPC分类号： C09K11/7708 , C01G15/006 , C09K11/7776 , H01L33/502 , C01P2002/52 , C01P2002/72 , H01L2933/0041
摘要： Disclosed are a red light and near-infrared light-emitting material and a preparation method thereof, and a light-emitting device including the light-emitting material. The red light and near-infrared light-emitting material contains a compound represented by a molecular formula, aSc2O3·Ga2O3·bR2O3, wherein the element R includes one or two of Cr, Ni, Fe, Yb, Nd or Er; 0.001≤a≤0.6; and 0.001≤b≤0.1. The light-emitting material can be excited by a spectrum having a wide wavelength range (ultraviolet light or purple light or blue light) to emit light with a wide spectrum of 650 nm to 1700 nm or multiple spectra, thus having higher light-emitting intensity.
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