Merck Patent Gmbh

Koninklijke Philips Corporation N.V.

Philips Lumileds Lighting Company LLC

Tailorlux Gmbh

Dominik Uhlich

Thomas Juestel

Holger Winkler

Ralf Petry

Tim Vosgroene

Gerd O Mueller

Regina B Mueller-Mach

Detlef Uwe Wiechert

Clemens Kuehn

Andreas Benker

Petra Huppertz

Arturas Katelnikovas

Arturas Kastelnikovas

Danuta Dutczak

Thomas Vosgroene

Thomas Jüstel

Peter Barnekow

Helga Bettentrup

Alex Deitermann

Sebastian RÜTTER

The invention relates to compounds of the formula (I) Ma(Ca,Sr,Ba)SiMeN:EuCe(I), where Ma=Li, Na and/or K Me=Hfand/or Zrx=0.0015 to 0.20 and y=0 to 0.15 z&#x3c;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.

Nitridosilicates co-doped with zirconium and hafnium

The invention relates to compounds of the formula (I): (Ca,Sr,Ba)MeSiN:Eu, where Me&#x2550;Mn, Mg, Be, Ni, Coand/or Ru; x=0.005 to 0.20; and y&#x3c;1, and/or of the formula (II): (Ca,Sr,Ba)SiMaN:Eu, where Ma&#x2550;Hf, Thand/or Zr; x=0.005 to 0.20; and z&#x3c;1, 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.

Co-doped 1-1-2 nitrides

The invention relates to compounds of the formula (I) (Ca,Sr,Ba)(SiMe)(OMa)N:Eu(I), where Me=Th, Ru and/or Os Ma=F and/or Cl, x&#x3c;0.5, y&#x3c;1 and z&#x3c;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.

Co-doped silicooxynitrides

A phosphor converted light emitting device includes a semiconductor structure comprising a light emitting layer disposed between an n-type region and a p-type region, the light emitting layer being configured to emit light having a first peak wavelength; a first phosphor configured to emit light having a second peak wavelength; and a second phosphor configured to emit light having a third peak wavelength. The second phosphor is an Eu-activated phosphor, configured such that in the excitation spectrum at 298K and 1.013 bar, a maximum intensity in a wavelength range between 460 nm and 470 nm is at least 5% of a maximum intensity in a wavelength range between 220 nm to 320 nm.

Phosphor converted light emitting device

Growing community of inventors

Steinfurt, Germany

Dominik Uhlich