Abstract: The invention relates to Eu2+-activated phosphors, to a process for the preparation of these compounds, and to phosphor mixtures, light sources and lighting units which comprise the Eu2+-activated phosphors according to the invention.

Abstract: The present invention relates to a process for the preparation of a europium-doped alkaline-earth metal siliconitride or silicooxynitride having increased emission efficiency. The present invention furthermore relates to europium-doped alkaline-earth metal siliconitrides or silicooxynitrides which are obtainable by the preparation process according to the invention, and to the use of the europium-doped alkaline-earth metal siliconitrides or silicooxynitrides according to the invention as conversion phosphors. The present invention furthermore also relates to a light-emitting device which comprises a europium-doped alkaline-earth metal siliconitride or silicooxynitride according to the invention.

Abstract: The present invention relates to cerium-doped garnet phosphors. The present invention furthermore relates to a process for the preparation of cerium-doped garnet phosphors, and to the use of these garnet phosphors as conversion phosphors. The present invention furthermore relates to a light-emitting device which contains cerium-doped garnet phosphors according to the invention.

Abstract: The invention relates to compounds containing an anionic skeleton structure, dopants and cations, where a. the anionic skeleton structure is characterised by coordination tetrahedra GL4?, where G stands for silicon, and L stands for N and O, b. the cations are selected from the alkaline-earth metals, c. the dopant present is trivalent cerium or a mixture of trivalent cerium and divalent europium, d. the charge compensation of the cerium doping takes place i) via corresponding replacement of alkaline-earth metal cations by alkali-metal cations and/or ii) via a corresponding increase in the nitrogen content and/or iii) via a corresponding reduction in the cations, to a process for the preparation of these compounds, and to the use thereof as conversion phosphors.

Abstract: The present invention relates to garnet phosphors, to a process for the preparation thereof and to the use thereof as conversion phosphors. The present invention also relates to an emission-converting material comprising at least the conversion phosphor according to the invention, and to the use thereof in light sources, in particular pc-LEDs (phosphor converted light emitting devices). The present invention furthermore relates to light sources, in particular pc-LEDs, and to lighting units which comprise a primary light source and the emission-converting material according to the invention.

Abstract: The invention relates to novel phosphor mixtures comprising three or more silicate phosphors. The invention furthermore relates to the use of these mixtures in electronic and electro-optical devices, in particular in light-emitting diodes (LEDs) for backlighting applications. The invention furthermore relates to LEDs comprising the phosphors.

Abstract: The invention relates to Eu2+-activated phosphors, to a process for the preparation of these compounds, and to phosphor mixtures, light sources and lighting units which comprise the Eu2+-activated phosphors according to the invention.

Abstract: The invention relates to surface-modified phosphor particles based on luminescent particles of (Ca,Sr,Ba)2SiO4 and/or other silicates, in each case individually or mixtures thereof with one or more activator ions, such as Eu, Mn, Ce and/or Mg and/or Zn, where at least one metal, transition-metal or semimetal oxide coating and an organic coating are applied to the luminescent particles, and to a preparation process.

Abstract: The invention relates to a casting composition based on a transparent epoxy or silicone resin (1), in particular for uses in an electroluminescent component (3), which preferably emits white light. The casting composition serves as diffusion barrier for moisture or water molecules through the use of glass and/or silica particles (2).

Abstract: The present invention relates to a process for the preparation of a europium-doped alkaline-earth metal siliconitride or silicooxynitride having increased emission efficiency. The present invention furthermore relates to europium-doped alkaline-earth metal siliconitrides or silicooxynitrides which are obtainable by the preparation process according to the invention, and to the use of the europium-doped alkaline-earth metal siliconitrides or silicooxynitrides according to the invention as conversion phosphors. The present invention furthermore also relates to a light-emitting device which comprises a europium-doped alkaline-earth metal siliconitride or silicooxynitride according to the invention.

Abstract: The invention relates to carbodiimide compounds of the general formula (I) EA2-ySi(CN2)4-xOx:Euy where EA stands for one or more elements selected from Mg, Ca, Sr, Ba or Zn and x stands for a value from the range from 0 to 3.9 and Y stands for a value from the range from 0.01 to 0.4, and a process for the preparation of these phosphors and the use thereof as conversion phosphors or in lamps.

Abstract: The invention relates to compounds of the formula (I) Ma2-y (Ca,Sr,Ba)1-x-ySi5-zMezN8:Eux Cey (I), where Ma=Li, Na and/or K Me=Hf4+ and/or Zr4+ x=0.0015 to 0.20 and y=0 to 0.15 z<4, and to a process for the preparation of these compounds and to the use as phosphors and conversion phosphors for conversion of the blue or near-UV emission from an LED.

Abstract: The invention relates to compounds of the general formula (I) EA2-xEuxSiO4.aM2B4O7 (I) where EA stands for two or more elements selected from Ca, Sr, Zn and Ba, M stands for Li, Na or K, and a stands for a value from the range 0.01?a?0.08, and x stands for a value from the range 0.01?x?0.25.

Abstract: The invention relates to surface-modified phosphor particles based on luminescent particles which comprise at least one luminescent compound, where (Ca,Sr,Ba)2SiO4 and other silicates having one or more activator ions, such as Eu, Ce and Mn, are excluded as luminescent compounds, and where at least one inorganic layer comprising oxides/hydroxides of Si, Al, Zr, Zn, Ti and/or mixtures thereof and an organic coating of organosilanes or polyorganosiloxanes (silicones) and/or mixtures thereof are applied to the luminescent particles, and to a production process.

Abstract: The invention relates to compounds of the formula (I) (Ca,Sr,Ba)6-X(Si1-yMey)3(O1-zMa2z)6N4:Eux (I), where Me=Th, Ru and/or Os Ma=F and/or Cl, x<0.5, y<1 and z<0.1, and to a process for the preparation of these compounds and use as phosphors and conversion phosphors for the conversion of the blue or near-UV emission from an LED.

Abstract: The invention relates to compounds of the general formula I (Sr1-z-nCazEun)mMp(SiN2)m-x(CN2)xSi3wN4w+p ??(I) where M stands for Al, Ga, Y, Gd or Lu and m stands for a value between 1 and 3 and n stands for a value from the range 0.005 m n 0.2 m and p stands for a value from 0 to 3 and w stands for a value from 0 to 2 and x stands for a value from the range 0 x m and z stands for a value from the range 0 z 0.4, and to a process for the preparation of these phosphors and to the use thereof as conversion phosphors or in lamps.

Abstract: The invention relates to compounds of the general formula (I) EA2-xEuxSiO4.aM2B4O7 (I) where EA stands for two or more elements selected from Ca, Sr, Zn and Ba, M stands for Li, Na or K, and a stands for a value from the range 0.01?a?0.08, and x stands for a value from the range 0.01?x?0.25.

Abstract: The invention relates to coated phosphor particles comprising luminescent particles and a, preferably substantially transparent, metal, transition-metal or semimetal oxide coating, and to a process for the production thereof.

Abstract: The invention relates to compounds of the general formula (I) SrLu2-xSiAl4O12:Cex (I) where x stands for a value from the range from 0.01 to 0.1 and a process for the preparation of these phosphors, and the use thereof as conversion phosphors or in lamps.

Abstract: The invention relates to carbodiimide compounds of the general formula (I) EA2-y Si(CN2)4-xOx:Euy where EA stands for one or more elements selected from Mg, Ca, Sr, Ba or Zn and x stands for a value from the range from 0 to 3.9 and Y stands for a value from the range from 0.01 to 0.4, and a process for the preparation of these phosphors and the use thereof as conversion phosphors or in lamps.