Lightscape Materials, Inc.

Dow Global Technolgoies LLC

Michael Dennis Romanelli

Yongchi Tian

Yuanqiang Li

Mary Anne Leugers

Alan C Thomas

Yuan Qiang Li

Tian Yongchi

A method of manufacturing an Euactivated inorganic red phosphor is provided, wherein the phosphor exhibits an emission spectrum resolvable into a first Gaussian emission curve and a second Gaussian emission curve; wherein the first Gaussian emission curve has a first Gaussian emission curve peak, P; wherein the first Gaussian emission curve peak, P, has a peak 1 height, H, a peak 1 peak wavelength, P&#x3bb;, and a peak 1 area, A; wherein the second Gaussian emission curve has a second Gaussian emission curve peak, P; wherein the second Gaussian emission curve peak, P, has a peak 2 height, H, a peak 2 peak wavelength, P&#x3bb;, a peak 2 full width at half max, FWHM, and a peak 2 area, A; wherein P&#x3bb;&#x3c;P&#x3bb;; and, wherein the peak 2 full width at half max, FWHM, is minimized.

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A family of oxycarbonitride phosphor compositions is provided. Also provided are light emitting devices incorporating the oxycarbonitride phosphor compositions.

Oxycarbonitride phosphors and light emitting devices using the same

A phosphor is provided, comprising an inorganic luminescent compound represented by formula (1) having an emission spectrum resolvable into a first Gaussian emission curve and a second Gaussian emission curve; wherein the first Gaussian emission curve has a first Gaussian emission curve peak, P; wherein the first Gaussian emission curve peak, P, has a peak 1 height, H, a peak 1 peak wavelength, P&#x3bb;, and a peak 1 area, A; wherein the second Gaussian emission curve has a second Gaussian emission curve peak, P; wherein the second Gaussian emission curve peak, Phas a peak 2 height, H, a peak 2 peak wavelength, P&#x3bb;, a peak 2 full width at half max, FWHM, and a peak 2 area, A; wherein P&#x3bb;&#x3c;P&#x3bb;; and, wherein, at least one of, the peak 2 height, H, the peak 2 full width at half max, FWHM, and, the peak 2 area, A, is minimized.

Inorganic phosphor and light emitting devices comprising same

A red phosphor is provided, comprising an inorganic luminescent compound represented by formula (1) having an emission spectrum resolvable into a first Gaussian emission curve and a second Gaussian emission curve; wherein the first Gaussian emission curve has a first Gaussian emission curve peak, P; wherein the first Gaussian emission curve peak, P, has a peak 1 height, H, a peak 1 peak wavelength, P&#x3bb;, and a peak 1 area, A; wherein the second Gaussian emission curve has a second Gaussian emission curve peak, P; wherein the second Gaussian emission curve peak, P, has a peak 2 height, H, a peak 2 peak wavelength, P&#x3bb;, a peak 2 full width at half max, FWHM, and a peak 2 area, A; wherein P&#x3bb;&#x3c;P&#x3bb;; and, wherein the peak 2 full width at half max, FWHM, is minimized.

Inorganic red phosphor and lighting devices comprising same

A red phosphor is provided. Also provided is a lighting apparatus containing a red phosphor.

Carbidonitride phosphors and LED lighting devices using the same

Halogenated oxycarbidonitride phosphor and devices using same

Disclosed herein is a novel family of oxycarbonitride phosphor compositions and light emitting devices incorporating the same. Within the sextant system of M&#x2014;Al&#x2014;Si&#x2014;O&#x2014;N&#x2014;C&#x2014;Ln and quintuplet system of M&#x2014;Si&#x2014;O&#x2014;N&#x2014;C&#x2014;Ln (M=alkaline earth element, Ln=rare earth element), the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. In certain embodiments, the disclosed phosphor of silicon oxycarbonitrides emits green light at wavelength between 530-550 nm. In further embodiments, the disclosed phosphor compositions emit blue-green to yellow light in a wavelength range of 450-650 nm under near-UV and blue light excitation.

Disclosed herein is a novel family of oxycarbidonitride phosphor compositions and light emitting devices incorporating the same. Within the sextant system of M&#x2014;Al&#x2014;Si&#x2014;O&#x2014;N&#x2014;C&#x2014;Ln and quintuplet system of M&#x2014;Si&#x2014;O&#x2014;N&#x2014;C&#x2014;Ln (M=alkaline earth element, Ln=rare earth element), the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. In certain embodiments, the disclosed phosphor of silicon oxycarbidonitrides emits green light at wavelength between 530-550 nm. In further embodiments, the disclosed phosphor compositions emit blue-green to yellow light in a wavelength range of 450-650 nm under near-UV and blue light excitation.

Oxycarbidonitride based phosphors and LED lighting devices

Disclosed herein are novel families of silicon carbidonitride phosphor compositions. In certain embodiments, optimal ranges of carbon content have been identified which provide excellent luminescence and thermal stability characteristics.

Silicon carbidonitride based phosphors and lighting devices using the same

Disclosed herein is a novel group of carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the present invention is directed to a novel family of carbidonitride-based phosphors expressed as follows:CaAlSiNC:A;&#x2003;&#x2003;(1)CaNaM(III)SiNC:A;&#x2003;&#x2003;(2)M(II)M(I)M(III)SiNC:A;&#x2003;&#x2003;(3)M(II)M(I)M(III)SiNCOH:A; and&#x2003;&#x2003;(4)M(II)M(I)M(III)SiNCOH:A,&#x2003;&#x2003;(4a)wherein 0&#x3c;x&#x3c;1, 0&#x3c;y&#x3c;1, 0&#x2266;z&#x3c;1, 0&#x2266;v&#x3c;1, 0&#x3c;w&#x3c;1, x+z&#x3c;1, x&#x3e;xy+z, and 0&#x3c;x&#x2212;xy&#x2212;z&#x3c;1, M(II) is at least one divalent cation, M(I) is at least one monovalent cation, M(III) is at least one trivalent cation, H is at least one monovalent anion, and A is a luminescence activator doped in the crystal structure.

Growing community of inventors

North Plainfield, NJ, United States of America

Michael Dennis Romanelli