Abstract: A transducer is disclosed which includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length providing an electrical connectivity to an external circuit, a second conductive protective electrode having the width and the length providing an electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes.

Abstract: The present invention provides, among other aspects, stabilized chromophoric nanoparticles. In certain embodiments, the chromophoric nanoparticles provided herein are rationally functionalized with a pre-determined number of functional groups. In certain embodiments, the stable chromophoric nanoparticles provided herein are modified with a low density of functional groups. In yet other embodiments, the chromophoric nanoparticles provided herein are conjugated to one or more molecules. Also provided herein are methods for making rationally functionalized chromophoric nanoparticles.

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.

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: Provided is a ceramic complex having high luminous characteristics. Proposed is a ceramic complex including a rare earth aluminate fluorescent material, glass, and calcium fluoride, wherein, when the total amount of the rare earth aluminate fluorescent material, the glass, and the calcium fluoride is taken as 100% by volume, the content of the rare earth aluminate fluorescent material is in a range of 15% by volume or more and 60% by volume or less, the content of the glass is in a range of 3% by volume or more and 84% by volume or less, and the content of the calcium fluoride is in a range of 1% by volume or more and 60% by volume of less.

Abstract: Disclosed are a color filter including a wavelength conversion layer which converts the wavelength of light, a light transmission layer formed on the wavelength conversion layer, and a wavelength filter layer formed on the light transmission layer, and an image display device. The light transmission layer transmits a light moving between the wavelength conversion layer and the wavelength filter layer and blocks the flow of outgas. The color filter includes the light transmission layer which transmits a light moving between the wavelength conversion layer and the wavelength filter layer and blocks the flow of outgas, thereby capable of achieving high color reproductivity while having excellent light-emitting efficiency and light retention rate.

Abstract: An object is to provide a new type of near-infrared ray-emitting phosphor which exhibits excellent emission intensity. A near-infrared ray-emitting phosphor is represented by a general formula, (Y, Lu, Gd)3-x-y (Ga,Al,Sc)5O12:(Crx,(Yb,Nd)y) (0.05<x<0.3, 0?y<0.3).

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 method for producing a fluoride fluorescent material comprises: preparing fluoride particles having a composition containing at least one element or ion A selected from the group consisting of alkaline metal elements and NH4+, at least one element M selected from the group consisting of Group-4 elements and Group-14 elements, Mn4+, and F, in which a molar ratio of A in 1 mol of the composition is 2, a total molar ratio of M and Mn4+ is 1, a molar ratio of Mn4+ is in a range of more than 0 and less than 0.2, and a molar ratio of F is 6; subjecting the fluoride particles to a first heat treatment at a temperature of 500° C. or more in an inert gas atmosphere; washing the first heat-treated fluoride particles with a washing liquid; and bringing the washed fluoride particles into contact with a fluorine-containing substance and subjecting the resulting fluoride particles to a second heat treatment at a temperature of 400° C. or more.

Abstract: A core-shell quantum dot comprising zinc, a core comprising a first semiconductor nanocrystal material; and a semiconductor nanocrystal shell disposed on the core, wherein the core-shell quantum dot does not comprise cadmium, and does comprise zinc, tellurium, selenium, and aluminum.

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: 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.

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: A core-shell particle includes: a core including an iron oxyhydroxide compound represented by Formula A3a3Fe1?a3OOH (in which A3 represents at least one metal element other than Fe, and a3 satisfies 0<a3<1) or at least one iron oxide compound selected from the group consisting of Fe2O3, a compound represented by Formula A1a1Fe2?a1O3 (in which A1 represents at least one metal element other than Fe, and a1 satisfies 0<a1<2), Fe3O4, and a compound represented by Formula A2a2Fe3?a2O4 (in which A2 represents at least one metal element other than Fe, and a2 satisfies 0<a2<2); and a shell which covers the core and includes a polycondensate of a metal alkoxide.

Abstract: Provided is a method for producing a ?-sialon fluorescent material, comprising preparing a composition containing a silicon nitride that contains aluminium, oxygen, and europium; heat-treating the composition at a temperature in a range of 1300° C. or more and 1600° C. or less to obtain a heat-treated product; subjecting the heat-treated product to a temperature-decrease of from the heat treatment temperature to 1000° C. as a first temperature-decrease step; and subjecting the heat-treated product to a temperature-decrease of from 1000° C. to 400° C. as a second temperature-decrease step. The first temperature-decrease step has a temperature-decrease rate in a range of 1.5° C./min or more and 200° C./min or less, and the second temperature-decrease step has a temperature-decrease rate in a range of 1° C./min or more and 200° C./min or less.

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: 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 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.