Abstract:
Disclosed are a phosphor, a method for preparing and using the same, a light emitting device package, a surface light source apparatus, a lighting apparatus using the phosphor, and a display apparatus. The phosphor includes an inorganic compound represented by an empirical formula (Sr, M)2SiO4-xNy:Eu, where M is a metallic element, 0
Abstract translation:公开了荧光体,其制备和使用方法,发光器件封装,表面光源装置,使用荧光体的照明装置和显示装置。 荧光体包括由经验式(Sr,M)2 SiO 4-x N y:Eu表示的无机化合物,其中M是金属元素,0
Abstract:
A fluoride phosphor includes fluoride particles represented by AxMFy:Mnz4+ where A is at least one selected from lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs), M is at least one selected from silicon (Si), titanium (Ti), zirconium (Zr), hafnium (Hf), germanium (Ge) and tin (Sn), a compositional ratio x of A satisfies 2≤x≤3, and a compositional ratio y of F satisfies 4≤y≤7; and an organic material physically adsorbed onto surfaces of the fluoride particles to allow the fluoride particles to have hydrophobicity. The fluoride particles have a concentration of Mn4+ gradually reduced from respective centers to respective surfaces of the fluoride particles.
Abstract:
A red phosphor contains a nitride having a formula of SrxMgySizN2/3(x+y+2z+w):Euw, in which x, y, z, and w satisfy the relationships 0.5≤x≤2, 2.5≤y≤3.5, 0.5≤z≤1.5 and 0
Abstract:
A red phosphor includes a nitride represented by an empirical formula of Sr1−x−yBaxEuyAlSi4N7. A composition ratio (x) of barium (Ba) satisfies 0
Abstract:
A method of manufacturing a semiconductor light emitting device, includes forming a conductive film on a surface of a semiconductor light emitting element. Phosphor particles are charged by mixing phosphor particles with an electrolyte having a metallic salt dissolved therein. The semiconductor light emitting element having the conductive film formed thereon is immersed in the electrolyte having the charged phosphor particles. A phosphor layer on the conductive film is formed by electrophoresing the phosphor particles. The conductive film is removed using wet etching.
Abstract:
A method of manufacturing a fluoride phosphor represented by a chemical formula A3MF7:Mn4+ includes forming a first mixture by mixing a first raw material containing A2MF6 and a second raw material containing AF or AHF2, forming a second mixture by mixing the first mixture and a sintering aid, and firing the second mixture. In the chemical formula, A is at least one selected from Li, Na, K, Rb, Cs and mixtures thereof, and M is at least one selected from Si, Ti, Zr, Hf, Ge, Sn, and mixtures thereof.
Abstract:
A fluoride phosphor may include: a fluoride represented by a composition formula: AxMFy:Mnz4+, where A is at least one selected from among Li, Na, K, Rb, and Cs, M is at least one selected from among Si, Ti, Zr, Hf, Ge and Sn, a composition ratio (x) of A satisfies 2≦x≦3, a composition ratio (y) of F satisfies 4≦y≦7, and a composition ratio (z) of Mn satisfies 0
Abstract:
There is provided a fluoride phosphor composite including: fluoride phosphor core particles that may be expressed by the empirical formula AxMFy:Mn4+, wherein A may be at least one selected from the group consisting of Li, Na, K, Rb, and Cs, M may be at least one selected from the group consisting of Si, Ti, Zr, Hf, Ge, and Sn, the composition ratio (x) of A may satisfy 2≦x≦3, the composition ratio (y) of F may satisfy 4≦y≦7, each fluoride phosphor composite particle may be coated with a Mn-free fluoride coating. The Mn-free fluoride coating may have a thickness less than or equal to 35% of the size of each fluoride phosphor composite particle.
Abstract:
A semiconductor light emitting device package includes: a light emitting device; a wavelength conversion unit formed in a path of light emitted from the light emitting device and including a mixture of a wavelength conversion material and a glass material; and a reflective film disposed on an upper surface of the wavelength conversion unit and reflecting a partial amount of light emitted from the light emitting device and allowing a partial amount of light emitted from the light emitting device to be transmitted therethrough.
Abstract:
There is provided a method of manufacturing a light emitting device which includes preparing a light emitting element emitting excitation light and a substrate on which the light emitting element is disposed. A fluoride phosphor is provided to absorb excitation light emitted from the light emitting element to emit visible light, and is represented by Chemical Formula (1). The fluoride phosphor is disposed on at least one of the light emitting element and the substrate, wherein Chemical Formula (1): AxMFy:Mn4+ (wherein 2≦x≦3 and 4≦y≦7, A is at least one element selected from the group consisting of Li, Na, K, Rb, and Cs, and M is at least one element selected from the group consisting Si, Ti, Zr, Hf, Ge, and Sn).