Osram Opto Semiconductors Gmbh

Osram Gmbh

Barbara Huckenbeck

Hailing Cui

Frank Jermann

Stefan Lange

Daniel Bichler

Rebecca Römer

Tim Fiedler

Alexander Baumgartner

Vera Stöppelkamp

Frauke Thienel

Norbert Bönisch

Ion Stoll

Martin Mandl

Dominik Scholz

Martin Strassburg

Franz Zwaschka

Martin Straβburg

Günter Huber

Bianca Pohl

Tilman Schimpke

Rebecca Romer

Norbert Bonisch

Vera Stoppelkamp

Rebecca RÖMER

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 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 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

In at least one embodiment, the semiconductor layering sequence () is designed for generating light and comprises semiconductor columns (). The semiconductor columns () have a respective core () made of a semiconductor material of a first conductivity type, and a core shell () surrounding the core () made of a semiconductor material of a second conductivity type. There is an active zone () between the core () and the core shell () for generating a primary radiation by means of electroluminescence. A respective conversion shell () is placed onto the semiconductor columns (), which conversion shell at least partially interlockingly surrounds the corresponding core shell (), and which at least partially absorbs the primary radiation and converts same into a secondary radiation of a longer wavelength by means of photoluminescence. The conversion shells () which are applied to adjacent semiconductor columns (), only incompletely fill an intermediate space between the semiconductor columns ().

Semiconductor layering sequence for generating visible light and light emitting diode

An optoelectronic semiconductor component and a method for manufacturing an optoelectronic semiconductor component are disclosed. In an embodiment, the component includes a plurality of active regions configured to generate a primary radiation and a plurality of luminescent material particles configured to convert the primary radiation into a secondary radiation, wherein the active regions are arranged spaced apart from each other, wherein each active region has a main extension direction, wherein each active region has a core region comprising a first semiconductor material, wherein each active region has an active layer covering the core region, wherein each active region has a cover layer comprising a second semiconductor material and covering the active layer, wherein at least some of the luminescent material particles are arranged between the active regions, and wherein a diameter of a majority of the luminescent material particles is smaller than a distance between two adjacent active regions.

Optoelectronic semiconductor component and method for producing an optoelectronic semiconductor component

A light source includes a primary radiation source, which emits radiation in the shortwave range of the optical spectral range, wherein this radiation is converted at least by means of a first luminescent substance entirely or partially into secondary longer-wave radiation in the visible spectral range, wherein the first luminescent substance originates from the class of nitridic modified orthosilicates (NOS), wherein the luminescent substance has as a component M predominantly the group EA=Sr, Ba, Ca, or Mg alone or in combination, wherein the activating dopant D is composed at least of Eu and replaces a proportion of M, and wherein a proportion of SiO2 is introduced in deficiency, so that a modified sub-stoichiometric orthosilicate is provided, wherein the orthosilicate is an orthosilicate stabilized with RE and N, where RE=rare earth metal.

Light source comprising a luminescent substance and associated illumination unit

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.

Lighting device comprising a primary radiation source and a first phosphor

Growing community of inventors

Augsburg, Germany

Barbara Huckenbeck