Abstract: The invention provides a luminescent material (10) based on quantum dots (100), wherein the quantum dots (100) have inorganic capping agents (110), wherein the luminescent material (10) comprises particles (12) having an inorganic salt matrix (14) hosting the quantum dots (100) with inorganic capping agents (110), wherein the luminescent quantum dots (100) have an outer layer (105). The invention also provides a method for the production of such luminescent material (10). The new luminescent material can be used and processed as conventional particulate luminescent material.

Abstract: The invention provides a process for the production of a (particulate) luminescent material comprising particles, especially substantially spherical particles, having a porous inorganic material core with pores, especially macro pores, which are at least partly filled with a polymeric material with luminescent quantum dots embedded therein, wherein the process comprises (i) impregnating the particles of a particulate porous inorganic material with pores with a first liquid (“ink”) comprising the luminescent quantum dots and a curable or polymerizable precursor of the polymeric material, to provide pores that are at least partly filled with said luminescent quantum dots and curable or polymerizable precursor; and (ii) curing or polymerizing the curable or polymerizable precursor within pores of the porous material, as well as a product obtainable thereby.

Abstract: The invention provides a color conversion arrangement, a lighting unit, a solid state light emitter package, a luminaire and a specific use of a graphene layer. A color conversion arrangement (140) with the first aspect comprises a first luminescent layer (110), a supporting layer (106) and a first graphene layer (108). The color conversion arrangement (140) is for converting light of a first color to light of another color. The first luminescent layer (110) comprises a first luminescent material which absorbs a portion of light of a first spectral distribution comprising the first color and converts at least a portion of the absorbed light towards light of a second spectral distribution. The supporting layer (106) supports the luminescent layer (110). The first graphene layer (108) thermally conducts heat in a lateral direction such that temperature differences in the color conversion arrangement (140) are reduced. Different arrangements of the layers of the color conversion arrangement (140) are provided.

Abstract: The invention provides a process for the production of a (particulate) luminescent material comprising particles, especially substantially spherical particles, having a porous inorganic material core with pores, especially macro pores, which are at least partly filled with a polymeric material with luminescent quantum dots embedded therein, wherein the process comprises (i) impregnating the particles of a particulate porous inorganic material with pores with a first liquid (“ink”) comprising the luminescent quantum dots and a curable or polymerizable precursor of the polymeric material, to provide pores that are at least partly filled with said luminescent quantum dots and curable or polymerizable precursor; and (ii) curing or polymerizing the curable or polymerizable precursor within pores of the porous material, as well as a product obtainable thereby.

Abstract: The invention provides a process for the production of a (particulate) luminescent material comprising particles, especially substantially spherical particles, having a porous inorganic material core with pores, especially macro pores, which are at least partly filled with a polymeric material with a first material embedded therein, wherein the process comprises (i) impregnating the particles of a particulate porous inorganic material with pores with a first liquid (“ink”) comprising the first material and a curable or polymerizable precursor of the polymeric material, to provide pores that are at least partly filled with said first material and curable or polymerizable precursor; and (ii) curing or polymerizing the curable or polymerizable precursor within pores of the porous material, as well as a product obtainable thereby.

Abstract: The invention provides a light emitting semiconductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn1-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.

Abstract: Method for producing a light emitting semiconductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn1-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.

Abstract: A system (100) for receiving electrical power wirelessly comprises a first (101) and a second electrode (102), with sandwiched there between at least one load module (103) dispersed in a matrix (104). Wherein at least the matrix (104) is applied in wet form.

Abstract: The invention provides a luminescent material (10) based on quantum dots (100), wherein the quantum dots (100) have inorganic capping agents (110), wherein the luminescent material (10) comprises particles (12) having an inorganic salt matrix (14) hosting the quantum dots (100) with inorganic capping agents (110), wherein the luminescent quantum dots (100) have an outer layer (105). The invention also provides a method for the production of such luminescent material (10). The new luminescent material can be used and processed as conventional particulate luminescent material.

Abstract: The invention provides a light emitting semiconductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn1-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.

Abstract: A system (100) for receiving electrical power wirelessly comprises a first (101) and a second electrode (102), with sandwiched there between at least one load module (103) dispersed in a matrix (104). Wherein at least the matrix (104) is applied in wet form.

Abstract: The invention provides a light emitting semi conductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.

Abstract: The invention provides a process for the production of a (particulate) luminescent material comprising particles, especially substantially spherical particles, having a porous inorganic material core with pores, especially macro pores, which are at least partly filled with a polymeric material with luminescent quantum dots embedded therein, wherein the process comprises (i) impregnating the particles of a particulate porous inorganic material with pores with a first liquid (“ink”) comprising the luminescent quantum dots and a curable or polymerizable precursor of the polymeric material, to provide pores that are at least partly filled with said luminescent quantum dots and curable or polymerizable precursor; and (ii) curing or polymerizing the curable or polymerizable precursor within pores of the porous material, as well as a product obtainable thereby.

Abstract: The invention provides a color conversion arrangement, a lighting unit, a solid state light emitter package, a luminaire and a specific use of a graphene layer. A color conversion arrangement (140) with the first aspect comprises a first luminescent layer (110), a supporting layer (106) and a first graphene layer (108). The color conversion arrangement (140) is for converting light of a first color to light of another color. The first luminescent layer (110) comprises a first luminescent material which absorbs a portion of light of a first spectral distribution comprising the first color and converts at least a portion of the absorbed light towards light of a second spectral distribution. The supporting layer (106) supports the luminescent layer (110). The first graphene layer (108) thermally conducts heat in a lateral direction such that temperature differences in the color conversion arrangement (140) are reduced. Different arrangements of the layers of the color conversion arrangement (140) are provided.

Abstract: The invention provides a light emitting semi conductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.

Abstract: The invention relates to a lighting apparatus comprising a conversion material (2) for converting primary light (4) into secondary light (5), wherein the conversion material (2) comprises converting photolummescent material (15), which degrades to non-converting photolummescent material over time when the conversion material (2) is illuminated by the primary light (4). The conversion material (2) is adapted such that, when the conversion material (2) is illuminated by the primary light (4), the relative decrease in concentration of the converting photolummescent material (15) within the conversion material (2) is larger than the relative decrease in intensity of the secondary light (5). This allows the lighting apparatus to provide an only slightly reduced absorbance of the primary light, even if a large part of the photolummescent material has been bleached, and thus a longer lifetime, with the same or a slightly reduced intensity of the secondary light.

Abstract: The invention provides a light-emitting arrangement (100, 200, 300), comprising: a light source (101, 201, 301) adapted to emit light of a first wavelength; a wavelength converting member (106, 206, 306) comprising a wavelength converting material adapted to receive light of said first wavelength and to convert at least part of the received light to light of a second wavelength; a sealing structure (103) at least partially surrounding said wavelength converting member to form a sealed cavity (105, 205, 305) containing at least said wavelength converting member, said cavity containing a controlled atmosphere; and a getter material (108, 208, 308) arranged within said sealed cavity, wherein said getter material is adapted to operate in the presence of water and/or produces water as a reaction product. Such getter materials have high capacity for removal of oxygen from the atmosphere within the sealed cavity, such that a low oxygen concentration can be maintained within the cavity.

Abstract: The invention provides a light-emitting arrangement comprising: a light source adapted to emit light of a first wavelength; a wavelength converting member comprising an organic wavelength converting material adapted to receive light of said first wavelength and to convert at least part of the received light to light of a second wavelength, said wavelength converting member and said light source being mutually spaced apart; and a sealing structure at least partially surrounding said wavelength converting member to form a sealed cavity containing at least said wavelength converting member, the gas pressure within said sealed cavity being 1*10?5 bar (1 Pa) or less. At such pressure, the organic phosphor has been found to have particularly good stability, thus resulting in a longer life time of the phosphor.

Abstract: The invention provides a light-emitting arrangement, comprising: a light source adapted to emit light of a first wavelength; a wavelength converting member comprising an organic wavelength converting compound adapted to receive light of said first wavelength and to convert at least part of the received light to light of a second wavelength, said wavelength converting member and said light source being mutually spaced apart; and a sealing structure at least partially surrounding said wavelength converting member to form a sealed cavity containing at least said wavelength converting member, said sealed cavity containing an inert gas and oxygen gas, the concentration of oxygen gas being in the range of from 0.05 to 3% based on the total volume within said sealed cavity. An oxygen concentration in this range has been found to have very limited influence on the life time of the organic wavelength converting compound.

Abstract: This invention relates to a light emitting diode device (100) including an outer casing (102), a light emitting diode element (114), which includes at least one light emitting diode (114a), arranged within the outer casing, a light outlet member (108) constituting a part of the outer casing, a sealed cavity (104) containing a controlled atmosphere, and a seal (110) arranged to seal the cavity. The light emitting diode device further comprises a remote organic phosphor element (116) arranged in the sealed cavity.