ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

• Main Authors: DYATKIN ALEXEY BORISOVICH, TSAI JUI YI, YEAGER WALTER, XIA CHUANJUN
• Format: Patent
• Language: English; Korean
• Published: 17.04.2018
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; ADHESIVES; CHEMISTRY; DYES; ELECTRICITY; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; PAINTS; POLISHES

The present invention relates to a compound for being used as an emitter, and a device including the compound, e.g., an organic light emitting diode (OLED). Provided is a compound having chemical formula, Ir(L_A)_n(L_B)_(3-n), having a structure of chemical formula I. In the structure of chemical formula I, A^1 to A^8 are each independently carbon or nitrogen; at least one of A^1 to A^8 is nitrogen; a ring B is bonded to a ring A through a C-C bond; iridium is bonded to the ring A through an Ir-C bond; X is O, S, or Se; R^1 to R^5 are each independently selected from various substituents, and connected to one another to be able to form a ring; n is an integer of 1 to 3; and at least one R^2 adjacent to a ring C is not hydrogen. Furthermore, a preparation including a first compound, and a device including the first compound, e.g., an organic electroluminescent device (OLED) are provided. 하기 화학식 I의 구조를 갖는 화학식 Ir(L)(L)을 갖는 화합물이 제공된다:화학식 I의 구조에서, 각각의 A내지 A은 독립적으로 탄소 또는 질소이고; A내지 A중 적어도 하나는 질소이고; 고리 B는 C-C 결합을 통해 고리 A에 결합되고; 이리듐은 Ir-C 결합을 통해 고리 A에 결합되고; X는 O, S, 또는 Se이고; 각각의 R내지 R는 다양한 치환기에서 독립적으로 선택되고, 이는 연결되어 고리를 형성할 수 있고; n은 1-3의 정수이고; 고리 C에 인접한 적어도 하나의 R는 수소가 아니다. 제1 화합물을 포함하는 제제 및 디바이스, 예컨대 OLED가 또한 제공된다.