摘要:
Described are luminescent components with excellent performance and stability. The luminescent components comprise a first element 1 including first luminescent crystals 11 from the class of perovskite crystals, embedded a first polymer P1 and a second element 2 comprising a second solid polymer composition, said second polymer composition optionally comprising second luminescent crystals 12 embedded in a second polymer P2. Polymers P1 and P2 differ and are further specified in the claims. Also described are methods for manufacturing such components and devices comprising such components.
摘要:
Provided are a perovskite optoelectronic device containing an exciton buffer layer, and a method for manufacturing the same. The optoelectronic device of the present inventive concept comprises: an exciton buffer layer in which a first electrode, a conductive layer disposed on the first electrode and comprising a conductive material, and a surface buffer layer containing fluorine-based material having lower surface energy than the conductive material are sequentially deposited; a photoactive layer disposed on the exciton buffer layer and containing a perovskite photoactive layer; and a second electrode disposed on the photoactive layer. Accordingly, a perovskite is formed with a combined FCC and BSS crystal structure in a nanoparticle photoactive layer. The present inventive concept can also form a lamellar or layered structure in which an organic plane and an inorganic plane are alternatively deposited; and an exciton can be bound by the inorganic plane, thereby being capable of expressing high color purity.
摘要:
The present invention relates to the field of luminescent crystals (LCs), and more specifically to Quantum Dots (QDs) of formula A1aM2bXc, wherein the substituents are as defined in the specification. The invention provides methods of manufacturing such luminescent crystals, particularly by dispersing suitable starting materials in the presence of a liquid and by the aid of milling balls; to compositions comprising luminescent crystals and to electronic devices, decorative coatings; and to components comprising luminescent crystals.
摘要:
Described are luminescent components with excellent performance and stability. The luminescent components comprise a first element including first luminescent crystals from the class of perovskite crystals, embedded a first polymer P1 and a second element comprising a second solid polymer composition, said second polymer composition optionally comprising second luminescent crystals embedded in a second polymer P2. Polymers P1 and P2 differ and are further specified in the claims. Also described are methods for manufacturing such components and devices comprising such components.
摘要:
A heterogeneous scintillator material is provided comprising core/shell nanoparticles having a highly hygroscopic or deliquescent halide-based core activated with trivalent Ln3+ or divalent Ln2+ lanthanide ions (Ln=La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) and a stable non-hygroscopic shell thereon. The heterogeneous nanoparticles can comprise highly hygroscopic lanthanide halide (LaBr3, LuI3) cores protected with stable non-hygroscopic LaF3 shells. The heterogeneous nanoparticles can comprise deliquescent alkaline earth halide (SrI2, BaI2) cores protected with stable non-hygroscopic (SrF2, BaF2) shells.
摘要:
This invention provides a radiation detector using a scintillator having both a strong luminescence intensity and a short time constant. The radiation detector comprises as a scintillator an organic/inorganic perovskite hybrid compound represented by the general formula AMX3, wherein A is R—NH3 or R′—NH2, or a mixture thereof, R is a hydrogen atom or a methyl group which may be substituted by an amino group or a halogen atom, R′ is a methylene group which may be substituted by an amino group or a halogen atom, each X is a halogen atom that may be identical to or different from the other X groups, and M is a Group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd.
摘要:
There is provided an electroluminescence device capable of causing an inorganic compound to emit light at a direct current voltage (low voltage), and whose luminescent color can be changed by dispersing the inorganic compound in an organic compound layer as an emissive layer. There is provided an electroluminescence device for emitting light through recombination of a hole injected from an anode and an electron injected from a cathode, wherein a single organic compound layer or plural organic compound layers are provided between the anode and the cathode, and an inorganic compound is dispersed in at least one layer of the organic compound layers.
摘要:
A fluorescent lamp is adapted to have an arc tube encapsulated in a glass glove. For the arc tube, an ultraviolet radiation emitting lamp that provides a wavelength equal to or longer than 253.7 nm is employed, and phosphor, composed of calcium halophosphate phosphor and three wavelength phosphors, is applied to the inner surface of the glass glove. Exciting this phosphor by ultraviolet radiation provided from the arc tube causes visible radiation to be emitted.
摘要:
This invention provides a radiation detector using a scintillator having both a strong luminescence intensity and a short time constant. This invention is a radiation detector comprising as a scintillator an organic/inorganic perovskite hybrid compound represented by the general formula AMX3, wherein A is RnullNH3 or RnullnullNH2, or a mixture thereof, R is a hydrogen atom or a methyl group which may be substituted by an amino group or a halogen atom, Rnull is a methylene group which may be substituted by an amino group or a halogen atom, each X is a halogen atom that may be identical to or different from the other X groups, and M is a Group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd.
摘要:
Phosphor blends are disclosed that are capable of absorbing electromagnetic ation having wavelengths in the range from about 315 nm to about 480 nm. O25:Eu2null,(Sr,Ba,Ca)5(PO4)3(Cl,OH):Eu2null,(Ba,Ca,Sr)2MgAl16O27: Eu2null, and (Ba,Ca,Sr)2MgAl16O27:Eu2null,Mn2null. White light sources are obtained by lying a phosphor blend over at least one LED that is capable of emitting electromagnetic radiation in the above-noted wavelength range.