COMPOSITION, FILM, LAYERED STRUCTURE, LIGHT-EMITTING DEVICE, AND DISPLAY

• Main Authors: MASE, Kentaro, NAITO, Shota
• Format: Patent
• Language: English; French; German
• Published: 01.03.2023
• Subjects: ADHESIVES; CHEMISTRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; FREQUENCY-CHANGING; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The present invention relates to a light-emitting composition containing a component (1) and a component (2) described below. The component (1) is a perovskite compound including constituent components A, B, and X, the component (2) is inorganic fine particles having a specific surface area of 0.01 m2/g to 150 m2/g, the constituent component A indicates a component positioned at each vertex of a hexahedron having the constituent component B at the center in a perovskite type crystal structure and is a monovalent cation, the constituent component X indicates a component positioned at each vertex of an octahedron having the constituent component B at the center in the perovskite type crystal structure and is at least one anion selected from the group consisting of a halide ion and a thiocyanate ion, and the constituent component B indicates a component positioned at the centers of the hexahedron where the constituent component A is disposed at each vertex and the octahedron where the constituent component X is disposed at each vertex in the perovskite type crystal structure and is a metal ion.