Molded Nanoparticle Phosphor For Light Emitting Applications

A molded nanoparticle phosphor for light emitting applications is fabricated by converting a suspension of nanoparticles in a matrix material precursor into a molded nanoparticle phosphor. The matrix material can be any material in which the nanoparticles are dispersible and which is moldable. The molded nanoparticle phosphor can be formed from the matrix material precursor/nanoparticle suspension using any molding technique, such as polymerization molding, contact molding, extrusion molding, injection molding, for example. Once molded, the molded nanoparticle phosphor can be coated with a gas barrier material, for example, a polymer, metal oxide, metal nitride or a glass. The barrier-coated molded nanoparticle phosphor can be utilized in a light-emitting device, such as an LED. For example, the phosphor can be incorporated into the packaging of a standard solid state LED and used to down-convert a portion of the emission of the solid state LED emitter. 1. A method of fabricating a molded nanoparticle phosphor , the method comprising:providing a suspension of nanoparticles in a matrix material precursor; andconverting the suspension to a molded nanoparticle phosphor, the molded nanoparticle phosphor comprising a matrix material and the nanoparticles.2. The method of claim 1 , further comprising coating the molded nanoparticle phosphor with a gas barrier material.3. The method of claim 1 , wherein the matrix material is a polymer or a sol gel.4. The method of claim 1 , wherein the matrix material is an epoxy claim 1 , silicone claim 1 , or acrylate.5. The method of claim 2 , wherein the gas barrier material is a polymer claim 2 , metal oxide claim 2 , metal nitride or a glass.6. The method of claim 2 , wherein the gas barrier material is an epoxy claim 2 , silicone claim 2 , or acrylate.7. The method of claim 1 , wherein the matrix material precursor comprises a monomer formulation.8. The method of claim 7 , wherein the matrix material precursor further comprises a ...

MOLDED NANOPARTICLE PHOSPHOR FOR LIGHT EMITTING APPLICATIONS

A molded nanoparticle phosphor for light emitting applications is fabricated by converting a suspension of nanoparticles in a matrix material precursor into a molded nanoparticle phosphor. The matrix material can be any material in which the nanoparticles are dispersible and which is moldable. The molded nanoparticle phosphor can be formed from the matrix material precursor/nanoparticle suspension using any molding technique, such as polymerization molding, contact molding, extrusion molding, injection molding, for example. Once molded, the molded nanoparticle phosphor can be coated with a gas barrier material, for example, a polymer, metal oxide, metal nitride or a glass. The barrier-coated molded nanoparticle phosphor can be utilized in a light-emitting device, such as an LED. For example, the phosphor can be incorporated into the packaging of a standard solid state LED and used to down-convert a portion of the emission of the solid state LED emitter. 1. A light emitting device , the device comprising: a housing; and', 'an LED located within the housing; and, 'a light emitting diode (LED) package, the LED package comprising a molded matrix material;', 'a plurality of nanoparticles suspended within the molded matrix material; and', 'a gas barrier material coated upon every surface of the molded matrix material., 'a phosphor composition disposed within the housing and in optical communication with the LED, the phosphor composition comprising2. The light emitting device of claim 1 , wherein the matrix material is a resin claim 1 , a polymer or a sol gel.3. The light emitting device of claim 2 , wherein the resin is an acrylate resin.4. The light emitting device of claim 3 , wherein the acrylate resin is formed from laurylmethacrylate mononer claim 3 , a photoinitiator and a crosslinker.5. The light emitting device of claim 1 , wherein the matrix material is an epoxy claim 1 , silicone claim 1 , or acrylate.6. The light emitting device of claim 1 , wherein the gas ...

Quantum dot led's to enhance growth in photosynthetic organisms

Quantum dot (QD) LEDs useful for plant, a!gael and photosynihetic bacterial growth applications. The QD LEDs utilizes a solid state LED (typically emitting blue or UV light) as the primary light source and one or more QD elements as a secondary light source that down-converts the primary light. The emission profile of the QD LED can be tuned to correspond to the absorbance spectrum of one or more photosynthetic pigments of the organism.

Quantum dot leds to enhance growth in photosynthetic organisms led