Abstract: A phosphor is specified. The phosphor has the general molecular formula: (MA)a(MB)b(MC)c(MD)d(TA)e(TB)f(TC)g(TD)h(TE)i(TF)j(XA)k(XB)l(XC)m(XD)n:E. In this case, MA is selected from a group of monovalent metals, MB is selected from a group of divalent metals, MC is selected from a group of trivalent metals, MD is selected from a group of tetravalent metals, TA is selected from a group of monovalent metals, TB is selected from a group of divalent metals, TC is selected from a group of trivalent metals, TD is selected from a group of tetravalent metals, TE is selected from a group of pentavalent elements, TF is selected from a group of hexavalent elements, XA is selected from a group of elements which comprises halogens, XB is selected from a group of elements which comprises O, S and combinations thereof, -E=Eu, Ce, Yb and/or Mn, XC?N and XD=C. The following furthermore hold true: a+b+c+d=t; e+f+g+h+i+j=u; k+l+m+n=v; a+2b+3c+4d+e+2f+3g+4h+5i+6j?k?2l?3m?4n=w; 0.8?t?1; 3.5?u?4; 3.5?v?4; (?0.2)?w?0.2 and 0?m<0.
Type:
Grant
Filed:
November 28, 2018
Date of Patent:
May 2, 2023
Assignee:
OSRAM OLED GMBH
Inventors:
Markus Seibald, Dominik Baumann, Tim Fiedler, Stefan Lange, Hubert Huppertz, Daniel Dutzler, Thorsten Schroeder, Daniel Bichler, Gudrun Plundrich, Simon Peschke, Gregor Hoerder, Gina Maya Achrainer, Klaus Wurst
Abstract: A thermoelectric material of the present invention includes copper, tin, and sulfur, wherein a ratio A/B of the number A of copper atoms to the number B of tin atoms is 0.5 to 2.5 and a content of a metal element other than copper and tin is 5 mol % or less with respect to total metal elements. Additionally, the thermoelectric material of the present invention has a thermal conductivity less than 1.0 W/(m·K) at 200 to 400° C.
Abstract: A ferrite sintered magnet comprises a plurality of main phase grains containing a ferrite having a hexagonal structure, wherein at least some of the main phase grains are core-shell structure grains each having a core and a shell covering the core; and wherein the minimum value of the content of La in the core is [La]c atom %; the minimum value of the content of Co in the core is [Co]c atom %; the maximum value of the content of La in the shell is [La]s atom %; the maximum value of the content of Co in the shell is [Co]s atom %; [La]c+[Co]c is 3.08 atom % or more and 4.44 atom % or less; and [La]s+[Co]s is 7.60 atom % or more and 9.89 atom % or less.
Abstract: Disclosed herein are embodiments of composite hexagonal ferrite materials formed from a combination of Y phase and Z phase hexagonal ferrite materials. Advantageously, embodiments of the material can have a high resonant frequency as well as a high permeability. In some embodiments, the materials can be useful for magnetodielectric antennas.
Type:
Grant
Filed:
March 31, 2021
Date of Patent:
March 28, 2023
Assignee:
Skyworks Solutions, Inc.
Inventors:
Michael David Hill, Srinivas Polisetty, Constance M. Griffith
Abstract: Provided is a plurality of flaky magnetic metal particles of embodiments, each flaky magnetic metal particle having a flat surface having either or both of a plurality of concavities and a plurality of convexities, the concavities or convexities being arranged in a first direction and each having a width of 0.1 ?m or more, a length of 1 ?m or more, and an aspect ratio of 2 or higher; and a magnetic metal phase containing at least one primary element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni). The flaky magnetic metal particles have an average thickness of between 10 nm and 100 ?m inclusive, and the average value of the ratio of the average length within the flat surface with respect to the thickness is between 5 and 10,000 inclusive.
Abstract: A method for producing a rare earth aluminate fluorescent material, including: preparing, as raw materials, cerium oxide having a crystallite diameter in a range of 200 ? or more and 1,600 ? or less, a compound containing at least one kind of a rare earth element Ln selected from the group consisting of Y, La, Lu, Gd, and Tb, a compound containing Al, and depending on necessity a compound containing at least one kind of an element M1 selected from the group consisting of Ga and Sc, wherein a total molar ratio of the rare earth element Ln and cerium is 3, a total molar ratio of Al and the element M1 is a product of a parameter k in a range of 0.95 or more and 1.05 or less and 5, a molar ratio of cerium is a product of a parameter n in a range of 0.005 or more and 0.050 or less and 3, and a molar ratio of the element M1 is a product of a parameter m in a range of 0 or more and 0.02 or less, the parameter k, and 5; and subjecting a mixture of the raw materials to a heat treatment to provide a calcined product.
Abstract: Provided are an inorganic fluorescent nanoparticle composite that can suppress the degradation of inorganic fluorescent nanoparticles when sealed in glass and a wavelength conversion member using the inorganic fluorescent nanoparticle composite. An inorganic fluorescent nanoparticle composite 1 is made up by including: an inorganic fluorescent nanoparticle 2; and an inorganic fine particle 3 deposited on a surface of the inorganic fluorescent nanoparticle 2.
Abstract: Provided is an electromagnetic-wave absorber composition and an electromagnetic-wave absorber that can favorably absorb a plurality of electromagnetic waves of different frequencies in a high frequency band in or above the millimeter-wave band. The electromagnetic-wave absorber composition includes a magnetic iron oxide that magnetically resonates at a high frequency in or above the millimeter-wave band and a resin binder. The electromagnetic-wave absorber composition has two or more extrema separated from each other on a differential curve obtained by differentiating a magnetic property hysteresis loop at an applied magnetic field intensity of from 16 kOe to ?16 kOe. The electromagnetic-wave absorber includes an electromagnetic-wave absorbing layer formed of the above-described electromagnetic-wave absorber composition.
Abstract: A radiation-emitting optoelectronic component may include a semiconductor chip or a semiconductor laser which, in operation of the component, emits a primary radiation in the UV region or in the blue region of the electromagnetic spectrum. The optoelectronic component may further include a conversion element comprising a first phosphor configured to convert the primary radiation at least partly to a first secondary radiation having a peak wavelength in the green region of the electromagnetic spectrum between 475 nm and 500 nm inclusive. The first phosphor may be or include BaSi4Al3N9, SrSiAl2O3N2, BaSi2N2O2, ALi3XO4, M*(1?x*?y*?z*) Z*z*[A*a*B*b*C*c*D*d*E*e*N4-n*On*], and combinations thereof.
Type:
Grant
Filed:
April 17, 2018
Date of Patent:
February 21, 2023
Assignee:
OSRAM OPTO SEMICONDUCTORS GMBH
Inventors:
Ion Stoll, Alexander Baumgartner, Alexander Wilm
Abstract: A luminescent material is disclosed with emission in the near infrared wavelength range, the luminescent material including Sc1-x-yAyRE:Crx, wherein MO=P3O9, BP3O12, SiP3O12; A=Lu, In, Yb, Tm, Y, Ga, Al, where 0?x?0.75, 0?y?0.9. A wavelength converting structure including the luminescent phosphor is also disclosed.
Abstract: A phosphor is specified. The phosphor has the general molecular formula: (MA)a(MB)b(MC)c(MD)d(TA)e(TB)f(TC)g(TD)h(TE)i(TF)j(XA)k(XB)l(XC)m(XD)n:E. In this case, MA is selected from a group of monovalent metals, MB is selected from a group of divalent metals, MC is selected from a group of trivalent metals, MD is selected from a group of tetravalent metals, TA is selected from a group of monovalent metals, TB is selected from a group of divalent metals, TC is selected from a group of trivalent metals, TD is selected from a group of tetravalent metals, TE is selected from a group of pentavalent elements, TF is selected from a group of hexavalent elements, XA is selected from a group of elements which comprises halogens, XB is selected from a group of elements which comprises O, S and combinations thereof, -E=Eu, Ce, Yb and/or Mn, XC=N and XD=C. The following furthermore hold true: a+b+c+d=t; e+f+g+h+i+j=u; k+l+m+n=v; a+2b+3c+4d+e+2f+3g+4h+5i+6j?k?2l?3m?4n=w; 0.8?t?1; 3.5?u?4; 3.5?v?4; (?0.2)?w?0.
Type:
Grant
Filed:
August 10, 2017
Date of Patent:
January 31, 2023
Assignee:
OSRAM OLED GMBH
Inventors:
Markus Seibald, Dominik Baumann, Tim Fiedler, Stefan Lange, Hubert Huppertz, Daniel Dutzler, Thorsten Schroeder, Daniel Biehler, Simon Peschke
Abstract: A wavelength converter 100 includes: a first phosphor 1 composed of an inorganic phosphor activated by Ce3+; and a second phosphor 2 composed of an inorganic phosphor activated by Ce3+ and different from the first phosphor. At least one of the first phosphor and the second phosphor is particulate. The first phosphor and the second phosphor are bonded to each other by at least one of a chemical reaction in a contact portion between the compound that constitutes the first phosphor and a compound that constitutes the second phosphor and of adhesion between the compound that constitutes the first phosphor and the compound that constitutes the second phosphor.
Abstract: This ferrite magnet has a magnetoplumbite structure and is characterized in that, when representing the composition ratios of the total of each metal element A, R, Fe and Me with expression (1) A1-xRx(Fe12-yMey)z, the Fe2+ content (m) in the ferrite magnet is greater than 0.1 mass % and less than 5.4 mass % (in expression (1), A is at least one element selected from Sr, Ba, Ca and Pb; R is at least one element selected from the rare-earth elements (including Y) and Bi, and includes at least La, and Me is Co, or Co and Zn). The invention makes it possible to achieve a ferrite magnet with increased Br.
Abstract: An object of the present invention is to provide an infrared light-emitting phosphor which emits light in a wavelength range where the sensitivity of a detector is high by combination with a semiconductor light-emitting element that emits light in the visible light region, and to provide an infrared light-emitting device using the infrared light-emitting phosphor. The object can be achieved with a light-emitting device including a semiconductor light-emitting element that emits ultraviolet light or visible light and a phosphor that absorbs ultraviolet light or visible light emitted from the semiconductor light-emitting element and emits light in the infrared region, wherein an emission peak wavelength in the infrared region of the phosphor emitting in the infrared region is from 750 to 1,050 nm, and the half width of an emission peak waveform is more than 50 nm.
Abstract: An ultraviolet light emitting phosphor for mercury-free lamps is a phosphor composed of a phosphate containing at least two metal elements selected from the group consisting of group 13 elements and lanthanoid series elements, and is excited to emit ultraviolet by irradiation with vacuum ultraviolet rays or an electron beam.
Abstract: Provided is an organic electroluminescent display device that further suppresses reflection of external light when viewed in an oblique direction; a phase difference film; and a circularly polarizing plate. This display device has an organic electroluminescent display panel, and a circularly polarizing plate arranged on the display panel, in which the circularly polarizing plate has a polarizer and a phase difference film, the phase difference film has, from a side of the polarizer, a negative A-plate, and a positive A-plate, the in-plane retardation of the negative A-plate at a wavelength of 550 nm is more than 50 nm and less than 90 nm, and the in-plane retardation of the positive A-plate at a wavelength of 550 nm is 100 to 200 nm, and the angle formed by the in-plane slow axis of the negative A-plate and the in-plane slow axis of the positive A-plate is 45°±10°.
Abstract: A quantum dot luminescent material and a method of producing thereof. The quantum dot luminescent material includes a hole injection layer, a hole transport layer, a quantum dot light emitting layer, an electron transport layer, and an electron injection layer. The quantum dot luminescent layer is located on the hole transport layer, and the quantum dot luminescent layer includes uniformly distributed perovskite nanodots.
Type:
Grant
Filed:
October 23, 2019
Date of Patent:
January 10, 2023
Assignee:
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Abstract: The present invention relates to a composition for 3D printing, a 3D printing method using the same, and a three-dimensional comprising the same, and provides a composition for 3D printing capable of realizing a three-dimensional shape having precision and excellent curing stability.
Abstract: A piezoelectric composition comprises an oxide having a perovskite structure, wherein the oxide contains bismuth, barium, iron and titanium; the X-ray diffraction pattern of the piezoelectric composition after a polarization treatment has a first peak and a second peak in the range of the diffraction angle 2? of 38.6° or more and 39.6° or less; the diffraction angle 2? of the first peak is smaller than the diffraction angle 2? of the second peak; an intensity of the first peak is represented as IL; an intensity of the second peak is represented as IH; and IH/IL is 0.00 or more and 2.00 or less.
Abstract: A quantum dot-containing composition includes a quantum dot, a ligand having coordinating groups, which coordinates to the surface of the quantum dots, and the ligand is represented by Formula I. In Formula I, A is an organic group including one or more coordinating groups selected from an amino group, a carboxy group, a mercapto group, a phosphine group, and a phosphine oxide group, Z is an (n+m+l)-valent organic linking group, R is a group including an alkyl group, an alkenyl group, or an alkynyl group each of which may have a substituent, Y is a group having a polymer chain which has a degree of polymerization of 3 or greater and which includes a polyacrylate skeleton or the like. n and m are each independently 1 or greater, l is 0 or greater, and n+m+l is integer 3 or greater. At least two coordinating groups are included in a molecule.