Osram Opto Semiconductors Gmbh

Osram Gmbh

Osram Oled Gmbh

Rebecca Römer

Stefan Lange

Hailing Cui

Barbara Huckenbeck

Frank Jermann

Tim Fiedler

Daniel Bichler

Alexander Baumgartner

Vera Stöppelkamp

Frauke Thienel

Norbert Bönisch

Dominik Eisert

Ivar Tångring

Claudia Jurenka

Markus Leitl

The invention relates to an optoelectronic component, which, in at least one embodiment, comprises an optoelectronic semiconductor chip having an emission side and a conversion element on the emission side. The conversion element is configured for conversion of a primary beam emitted by the semiconductor chip in operation as intended. The conversion element is divided into at least one first layer and one second layer. The first layer is arranged between the second layer and the emission side. The first layer comprises a first matrix material having fluorescent particles introduced therein. The second layer comprises a second matrix material having fluorescent particles introduced therein. The first matrix material of the first layer has a higher index of refraction than the second matrix material of the second layer.

Optoelectronic component

A phosphor and a method for making the phosphor are disclosed. In an embodiment a phosphor for emission of red light includes Sr(SrCa)SiAlN:Eu, wherein x is 0.8&#x3c;x&#x2264;1, wherein between 0.1% and 5% inclusive of the Sr, Ca and/or Sr/Ca lattice sites are replaced by Eu, wherein the parameter value a is between 0.6 and 1.0 inclusive, wherein the phosphor has a structure comprising (Si/Al)Ntetrahedra arranged in a 3D network, in which layers in an a-c plane are linked in a b-direction, and wherein pure Sr positions and positions having a mixed Sr/Ca population are intercalated between the network, layer by layer.

Phosphor, method for producing a phosphor and use of a phosphor

A method of manufacturing a plurality of conversion elements includes providing a first conversion layer on an auxiliary carrier, the first conversion layer converting electromagnetic radiation of a first wavelength range into electromagnetic radiation of a second wavelength range, applying a second conversion layer on the first conversion layer, the second conversion layer converting electromagnetic radiation of the first wavelength range into electromagnetic radiation of a third wavelength range, and separating the generated layer stack such that a plurality of conversion elements are generated, wherein each conversion element includes at least one first converting region having material of the first conversion layer, each conversion element includes at least one second converting region having material of the second conversion layer, and the converting regions are arranged laterally side by side.

Method of manufacturing a plurality of conversion elements, conversion element and optoelectronic component

A phosphor and a lighting device are disclosed. In an embodiment a lighting device includes a first phosphor disposed in a beam path of the primary radiation source, wherein the first phosphor has the formula Sr(SrM)SiAl(N,X):D,A,B,E,G,L, wherein element M is selected from Ca, Ba, Mg or combinations thereof, wherein element D is one or more elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, alkali metals or Yb, wherein element A is selected from divalent metals different than those of the elements M and D, wherein element B is selected from trivalent metals, wherein element E is selected from monovalent metals, wherein element G is selected from tetravalent elements, wherein element L is selected from trivalent elements, wherein element X is selected from O or halogen, and wherein a parameter a is between 0.6 and 1.0.

A lighting device includes a radiation source that emits primary radiation in the wavelength range of 300 nm to 570 nm, a first phosphor arranged in a beam path of the primary radiation source that converts at least part of the primary radiation into secondary radiation in an orange to red wavelength range of 570 nm to 800 nm, and filter particles arranged in a beam path of the secondary radiation that absorb at least part of the secondary radiation.

Lighting device with a first phosphor and filter particles

A luminescent material mixture has a first luminescent material and a second luminescent material, wherein, under excitation with blue light, an emission spectrum of the first luminescent material has a relative intensity maximum in a yellowish-green region of the spectrum at a wavelength of greater than or equal to 540 nm and less than or equal to 560 nm and an emission spectrum of the second luminescent material has a relative intensity maximum in an orange-red region of the spectrum at a wavelength of greater than or equal to 600 nm and less than or equal to 620 nm.

Luminescent-substance mixture, light-emitting semiconductor component having a luminescent-substance mixture, and streetlamp having a luminescent-substance mixture

A phosphor is disclosed. In an embodiment a phosphor includes an inorganic substance which includes, in its composition, at least an element D, an element A1, an element AX, an element SX and an element NX where D includes one, two or more elements selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, alkali metals and Yb, A1 includes one, two or more elements selected from the group consisting of divalent metals not included in D, SX includes one, two or more elements selected from the group consisting of tetravalent metals, AX includes one, two or more elements selected from the group consisting of trivalent metals, and NX includes one, two or more elements selected from the group consisting of O, N, S, C, Cl, and F, wherein the inorganic substance has the same crystal structure as Sr(SrCa)SiAlN.

A phosphor is disclosed. In an embodiment a phosphor includes an inorganic substance which includes, in its composition, at least an element D, an element Al, an element AX, an element SX and an element NX where D includes one, two or more elements selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, alkali metals and Yb, Al includes one, two or more elements selected from the group consisting of divalent metals not included in D, SX includes one, two or more elements selected from the group consisting of tetravalent metals, AX includes one, two or more elements selected from the group consisting of trivalent metals, and NX includes one, two or more elements selected from the group consisting of O, N, S, C, Cl, and F, wherein the inorganic substance has the same crystal structure as Sr(SrCa)SiAlN.

Growing community of inventors

Wuppertal, Germany

Rebecca Römer