摘要:
A phosphor ceramic includes at least one fluorescent layer that is capable of emitting fluorescent light; and at least one non-fluorescent layer that does not emit fluorescent light and is laminated onto the fluorescent layer.
摘要:
There is provided an infrared ray reflective substrate including an infrared ray reflective layer, a protective layer disposed on a surface of the infrared ray reflective layer and a transparent substrate that supports the infrared ray reflective layer from a rear surface side thereof, wherein the protective layer is formed from a polycycloolefin layer.
摘要:
A light emitting device includes: at least one light emitting component (LEC) comprising a light-emitting face having a longest linear dimension D1; at least one wavelength-converting consolidated monolithic component (WCC) having a light-receiving face, a light-emitting face, and a peripheral edge. The WCC is radiationally linked to and spaced apart from the LEC at a distance D2, D2 being less than D1, wherein a projection edge of the light-emitting face of the LEC and the peripheral edge of the WCC define a shortest distance D3 therebetween, wherein a surface area of the light-receiving face of the WCC is at least 120% of that of the light-emitting face of the LEC, and the LEC and WCC are positioned relative to each other to satisfy D3/D2≧1.
摘要:
Disclosed herein are phosphor compositions which can exhibit a broad emission spectrum and improved color rendering index (CRI) relative to conventional phosphor materials. The phosphor compositions may, in some embodiments, be represented by the Formula I: (RE2−x+yCexAk1−y)(MG4−z−rSirMnz)(Si1−ePe)O12−rNr, wherein RE comprises at least one rare earth metal; Ak comprises at least one alkaline earth metal; MG comprises at least one main group element; x is greater than 0 and less than or equal to 0.2; y is less than 1; z is greater than 0 and less than or equal to 0.8; e is about 0 or less than or equal to 0.16; r is about 0 or less than or equal to 1; and z is about the sum of e and y. Also disclosed herein are lighting apparatuses including the phosphor compositions, as well as methods of making and using the phosphor compositions.
摘要翻译:本文公开了相对于常规磷光体材料可以显示出宽的发射光谱和改进的显色指数(CRI)的荧光体组合物。 在一些实施方案中,荧光体组合物可以由式I表示:(RE 2-x + yCexAk 1-y)(MG 4 -z-z -Sr M 1 z)(Si 1-e P e)O 12 -r N r,其中RE包含至少一种稀土金属 ; Ak包含至少一种碱土金属; MG包括至少一个主组元素; x大于0且小于或等于0.2; y小于1; z大于0且小于或等于0.8; e为约0或小于或等于0.16; r为0或小于或等于1; z约为e和y之和。 本文还公开了包括磷光体组合物的照明装置,以及制造和使用荧光体组合物的方法。
摘要:
Disclosed herein are emissive ceramic materials having a dopant concentration gradient along a thickness of a yttrium aluminum garnet (YAG) region. The dopant concentration gradient may include a maximum dopant concentration, a half-maximum dopant concentration, and a slope at or near the half-maximum dopant concentration. The emissive ceramics may, in some embodiments, exhibit high internal quantum efficiencies (IQE). The emissive ceramics may, in some embodiments, include porous regions. Also disclosed herein are methods of make the emissive ceramic by sintering an assembly having doped and non-doped layers.
摘要:
The present invention relates to a composite film including a wavelength conversion layer and a diffusive reflection resin layer in a laminated state and being used in a semiconductor light emitting device, in which the wavelength conversion layer contains a phosphor material which absorbs a part or all of excitation light and is excited to emit visible light in a wavelength region longer than a wavelength of the excitation light, the diffusive reflection resin layer is selectively formed with patterning on one surface of the wavelength conversion layer, and a region on the one surface of the wavelength conversion layer where the diffusive reflection resin layer is not formed with patterning is a path of the excitation light which excites the phosphor material in the wavelength conversion layer.
摘要:
Some embodiments disclosed herein include a lighting apparatus having a composite. The composite may include a first emissive layer and a second emissive layer. The first emissive layer may include a first garnet phosphor having a common dopant. The second emissive layer may include a second garnet phosphor having the common dopant. In some embodiments, the first emissive layer and the second emissive layer are fixed together. Some embodiments disclosed herein include efficient and economic methods of making the composite. The method may include, in some embodiments, sintering an assembly that includes pre-cursor materials for the first emissive layer and the second emissive layer.
摘要:
Disclosed herein are processes for making a plurality of substantially phase-pure metal oxide particles, the particles comprising a garnet structure, the process comprising: subjecting a dispersion of precursors to a solvothermal treatment to form a garnet intermediate and applying a flow-based thermochemical process to said garnet intermediate.
摘要:
Disclosed herein is a method of increasing the luminescence efficiency of a translucent phosphor ceramic. Other embodiments are methods of manufacturing a phosphor translucent ceramic having increased luminescence. Another embodiment is a light emitting device comprising a phosphor translucent ceramic made by one of these methods.
摘要:
Embodiments of the present invention relate to semiconducting carbon-containing devices and methods of making thereof. The semi-conducting carbon containing devices comprise an n-type semiconducting layer and a p-type semiconducting layer, both of which are positioned over a substrate. The n-type semiconducting layer can be formed by pyrolyzing a carbon- and nitrogen-containing polymer, and the p-type semiconducting layer can be formed by pyrolyzing an aromatic- and aliphatic-group-containing polymer. In some embodiments, the devices are solar cell devices.