A composition for an organic electroluminescent device is a composition for forming an organic light emitting layer of an organic electroluminescent device by wet coating process. The composition contains a phosphorescent material, a charge transport material, and a solvent, in which the phosphorescent material and the charge transport material are each an unpolymerized organic compound, and the first oxidation potential of the phosphorescent material ED+, the first reduction potential of the phosphorescent material ED-, the first oxidation potential of the charge transporting material ET+, and the first reduction potential of the charge transporting material ET- satisfy the following condition: ET-+0.1≤ED-
一种用于有机电致发光器件的组合物是一种用于通过湿涂层工艺形成有机电致发光器件的有机发光层的组合物。该组合物包含
磷光材料、电荷传输材料和溶剂,其中
磷光材料和电荷传输材料均为未聚合的有机化合物,
磷光材料的第一氧化电位 ED+、
磷光材料的第一还原电位 ED-、电荷传输材料的第一氧化电位 ET+、电荷传输材料的第一还原电位 ET- 满足以下条件:ET-+0.1≤ED-
ORGANIC COMPOUND, CHARGE TRANSPORT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Pioneer Corporation
公开号:EP1858094A1
公开(公告)日:2007-11-21
An organic compound is represented by following Formula (I) :
wherein Cz1 and Cz2 may be the same as or different from each other and each represent a carbazolyl group; Q1 and Q2 may be the same as or different from each other and each represent a direct bond or an arbitrary linkage group; and Cz1, Cz2, Q1, Q2, Ring B1 and Ring B2 may each be substituted. The organic compound and charge transporting material show both excellent hole transporting ability and excellent electron transporting ability and have satisfactory durability against electric oxidation/reduction and a high triplet excitation level. An organic electroluminescent device using the organic compound emits light with a high efficiency and is highly stably driven.
有机化合物由下式(I)表示:
其中 Cz1 和 Cz2 可以相同或不同,各自代表一个
咔唑基团;Q1 和 Q2 可以相同或不同,各自代表一个直接键或任意连接基团;Cz1、Cz2、Q1、Q2、环 B1 和环 B2 可以各自被取代。该有机化合物和电荷传输材料同时显示出优异的空穴传输能力和优异的电子传输能力,并具有令人满意的抗电氧化/还原耐久性和高三重激发
水平。使用该有机化合物的有机电致发光器件发光效率高,驱动高度稳定。
ORGANIC COMPOUND, CHARGE-TRANSPORTING MATERIAL, AND ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:Pioneer Corporation
公开号:EP1829871B1
公开(公告)日:2015-08-12
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