Electroluminescent ceramic materials
AssigneeForschungszentrum Julich GmbH
InventorsApurv Dash, Robert Mücke, Olivier Guillon
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Abstract
A method and a device for generating light and to a use of a component for emitting light is disclosed. In a method for generating light, a component comprising a first material from the group of cuprates is subjected to an electric voltage and/or an electric field at a temperature T below 0° C. such that the component emits light. In this way, a light generation is provided which is accompanied by a substantial energy saving as well as a significantly reduced technical effort and which is also possible at cryogenic temperatures.
Claims20
A method for generating light in which a component comprising a first material is subjected to an electric voltage and/or an electric field at a temperature (T) below 0° C. such that the component emits light, wherein the emission of light is based on electroluminescence of the first material, wherein the first material includes at least one selected from the group consisting of lanthanum barium copper oxide (LaBaCuO), lanthanum strontium copper oxide (LaSrCuO), yttrium barium copper oxide (YBaCuO), bismuth strontium calcium copper oxide (BiSrCaCuO), bismuth strontium copper carbonate (BiSrCuOCO), thallium barium calcium copper oxide (TlBaCaCuO), mercury barium calcium copper oxide (HgBaCaCuO), mercury thallium barium calcium copper oxide (HgTlBaCaCuO), barium calcium copper oxide (BaCaCuO), barium calcium copper carbonate (BaCaCuCO), and strontium-potassium-copper-oxide-chlorine (SrKCuOCl).
A device for generating light, comprising a component for emitting light and a power supply device for subjecting the component to an electric voltage and/or an electric field for emission of light by the component, wherein the component includes a first material including at least one selected from the group consisting of lanthanum barium copper oxide (LaBaCuO), lanthanum strontium copper oxide (LaSrCuO), yttrium barium copper oxide (YBaCuO), bismuth strontium calcium copper oxide (BiSrCaCuO), bismuth strontium copper carbonate (BiSrCuOCO), thallium barium calcium copper oxide (TlBaCaCuO), mercury barium calcium copper oxide (HgBaCaCuO), mercury thallium barium calcium copper oxide (HgTlBaCaCuO), barium calcium copper oxide (BaCaCuO), barium calcium copper carbonate (BaCaCuCO), and strontium-potassium-copper-oxide-chlorine (SrKCuOCl), wherein the device is configured such that the component has a temperature (T) below 0° C. when light is generated, and wherein the emission of light is based on electroluminescence of the first material.
Dependencies are inferred from the claim text.