Abstract:
A method of manufacturing a fluoride phosphor, the method comprising: preparing a hydrofluoric (HF) solution in which a first source material and a fluoride containing Mn4+ are dissolved; and forming fluoride particles by introducing a second source material to the HF solution in each of a plurality of instances.
Abstract:
A method of manufacturing a fluoride phosphor, the method comprising: preparing a hydrofluoric (HF) solution in which a first source material and a fluoride containing Mn4+ are dissolved; and forming fluoride particles by introducing a second source material to the HF solution in each of a plurality of instances.
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 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).
Abstract:
According to one embodiment of the present invention, a light-emitting-device package comprises a wavelength-converting layer which is formed on a light-emitting-device chip, comprises a fluorescent body and crystallized glass, and converts the wavelength of the light generated from the light-emitting-device chip. Consequently, by making the refractive indices of the phosphor and the crystallized glass comprised in the wavelength-converting layer coincide, it is possible to reduce the scattering losses which occur when the refractive indices differ. As a result, it is possible to improve the light-extraction efficiency of the light-emitting-device package. Also, because the to light-emitting-device package uses the wavelength-converting layer comprising the phosphor and the crystallized glass, the processability and reliability are outstanding and it is possible to reduce the processing time when the light-emitting-device package is produced.
Abstract:
Disclosed is a method for preparing a fluorescent substance, which is represented by the formula M1-zEuzSiaObNc (M=Sr1-x-yBaxCay, 0 x 0.5, 0 y 0.2, 0
Abstract:
There is provided a method for preparing a β-SiAlON phosphor capable of be controlled to show characteristics such as high brightness and desired particle size distribution. The method for preparing a β-SiAlON phosphor represented by Formula: Si(6−x)AlxOyN(6−y):Lnz (wherein, Ln is a rare earth element, and the following requirements are satisfied: 0
Abstract translation:提供了一种制备能够被控制以显示诸如高亮度和期望的粒度分布等特性的“SiAlON”荧光体的方法。 制备由式:Si(6-x)Al x O y N(6-y):Lnz(其中,Ln是稀土元素)并且满足以下要求的由式(Si-x)Al x O y N(6-y)表示的SiAlON荧光体的方法:0
Abstract:
A white light emitting device including: a blue light emitting diode (LED); a green silicate phosphor formed on the blue LED; and a red sulfide phosphor with a surface coated with a silicone oxide layer, the red sulfide phosphor formed on the blue LED.
Abstract:
A complex crystal phosphor is an inorganic composition containing at least an M element, an Al element, silicon, oxygen, and nitrogen. The inorganic composition has particles having at least two types of crystal phase, and the at least two types of crystal phase include a first crystal phase which is the same as a M2SiO4 crystal and a second crystal phase as a β-sialon crystal. Here, M is at least one element selected from the group consisting of (Mg), calcium (Ca), strontium (Sr), and barium (Ba).