Abstract:
The present invention provides a method for fabricating a fluoride phosphor. A first solution is formed by dissolving potassium fluoride (KF) and either K2MnF6 or KMnO4 in a hydrofluoric acid solution. A second solution is formed by mixing a surfactant and a silane. The first solution and the second solution are mixed to form a precipitate. The precipitate is collected after the first solution and the second solution are mixed. The present invention also provides a fluoride phosphor represented by the following formula: K2[SiF6]:Mn4+. The fluoride phosphor has a particle size in a range of about 1 μm to about 10 μm. The present invention further provides a light-emitting apparatus and backlight module employing the same.
Abstract:
The present disclosure provides a light emitting structure including a blue light source, a first fluorescent material layer and a second fluorescent material layer. The blue light source has a light emitting surface. The first fluorescent material layer covers the light emitting surface of the blue light source. The first fluorescent material layer consists of a first fluorescent material. An excitation band of the first fluorescent material is in a blue wave band, and an emission band of the first fluorescent material is in a green wave band. The second fluorescent material layer covers the first fluorescent material layer. The second fluorescent material layer consists of a second fluorescent material. An excitation band of the second fluorescent material is in a green wave band, and an emission band of the second fluorescent material is in a red wave band. A light device and a backlight module are also provided herein.
Abstract:
The present invention provides a phosphor with a preferred orientation represented by the following formula: A2[MF6]:Mn4+, wherein A is selected from a group consisting of Li, Na, K, Rb, Cs, and NH4, M is selected from a group consisting of Ge, Si, Sn, Ti, and Zr. The preferred orientation is a (001)/(011) preferred orientation. The present invention also provides a method for fabricating the above phosphor. The present invention further provides a light-emitting element package structure employing the same.
Abstract:
A quantum dot composite material and a manufacturing method and an application thereof are provided. The quantum dot composite material includes an all-inorganic perovskite quantum dot and a modification protection on a surface of the all-inorganic perovskite quantum dot. The all-inorganic perovskite quantum dot has a chemical formula of CsPb(ClaBr1-a-bIb)3, wherein 0≤a≤1, 0≤b≤1.
Abstract:
A quantum dot composite material and a manufacturing method and an application thereof are provided. The quantum dot composite material includes an all-inorganic perovskite quantum dot and a modification protection on a surface of the all-inorganic perovskite quantum dot. The all-inorganic perovskite quantum dot has a chemical formula of CsPb(ClaBr1-a-bIb)3, wherein 0≤a≤1, 0≤b≤1.
Abstract:
The present disclosure provides a method for fabricating a phosphor. A first solution is formed by dissolving potassium hexafluorogermanate (K2GeF6) and either K2MnF6 or KMnO4 in a hydrofluoric acid solution. An anhydrous ethanol is added to the first solution to make a total concentration of fluoride ions of potassium hexafluorogermanate (K2GeF6), hydrofluoric acid, and either K2MnF6 or KMnO4 equal to or less than 48M to form a precipitate. Afterward, the precipitate is collected.