Merck Patent Gmbh

Litec-vermogensverwaltungsgesellschaft Mbh

Mathias Rapphahn

Ralf Petry

Ingo Koehler

Stefan Tews

Aleksander Zych

Andreas Benker

Eric Heiden

The present invention relates to a light-converting material which comprises a luminescent material with semiconductor nanoparticles (quantum materials), where the semiconductor nanoparticles are located on the surface of the luminescent material and the emission from the semiconductor nanoparticles is in the region of the emission from the luminescent material. The present invention furthermore relates to a process for the preparation of the light-converting material and to the use thereof in a light source. The present invention furthermore relates to a light-converting mixture, a light source, a lighting unit which contains the light-converting material according to the invention, and a process for the production thereof.

Light-converting material with semiconductor nanoparticles, process for its preparation, and light source

The present invention relates to alkaline earth aluminate 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.

Phosphors and phosphor-converted LEDs

The invention relates to pyrosilicate phosphors comprising a coating of aluminum oxide, to a process for the preparation of these compounds, and to the use thereof as conversion phosphors or in lamps.

Silicate phosphors

The present invention relates to pyrosilicate 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 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.

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Greifswald, Germany

Mathias Rapphahn