LIGHT-EMITTING ELEMENT

• Main Authors: SASADA TOSHIAKI, YAMAUCHI SHOGO, AOYAMA YOSHINORI
• Format: Patent
• Language: English; Japanese
• Published: 05.10.2017
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a light-emitting element with excellent luminous efficiency.SOLUTION: A light-emitting element includes an anode, a cathode, and a first organic layer and a second organic layer provided between the anode and the cathode. The first organic layer contains a compound expressed by Formula (1), and the second organic layer contains a crosslinking body of a crosslinking material. [In the formula, the ring R, the ring R, and the ring Rmay independently express an aromatic hydrocarbon ring, and the ring may have a substituent. If there is a plurality of substituents, the substituents may be either the same or different, and may form a ring with a carbon atom with which the substituent is coupled. Note that at least one of the ring R, the ring R, and the ring Rexpresses the aryl group of the condensed ring that may have a substituent.SELECTED DRAWING: None 【課題】発光効率に優れる発光素子を提供する。【解決手段】陽極と、陰極と、陽極及び陰極の間に設けられた第１の有機層及び第２の有機層と、を有する発光素子であり、第１の有機層が、式（１）で表される化合物を含有する層であり、第２の有機層が、架橋材料の架橋体を含有する層である、発光素子。［式中、環Ｒ１Ａ、環Ｒ２Ａ及び環Ｒ３Ａは、それぞれ独立に、芳香族炭化水素環を表し、該環は置換基を有していてもよい。該置換基が複数存在する場合、それらは同一でも異なっていてもよく、互いに結合して、それぞれが結合する炭素原子とともに環を形成していてもよい。但し、環Ｒ１Ａ、環Ｒ２Ａ及び環Ｒ３Ａのうちの少なくとも一つは、置換基を有していてもよい縮合環のアリール基を表す。］【選択図】なし