公开(公告)号：EP2276085A1

公开(公告)日：2011-01-19

申请号：EP09725501.2

申请日：2009-02-27

申请人： Nippon Steel Chemical Co., Ltd. ,  Yamagata Promotional Organization for Industrial Technology

发明人： FUKUMATSU, Takayuki ,  ICHIHASHI, Ikumi ,  MIYAZAKI, Hiroshi ,  ODA, Atsushi

IPC分类号： H01L51/50 ,  C07D487/04 ,  C07D493/14 ,  C09K11/06

CPC分类号： H01L51/5088 ,  C07D487/04 ,  C07D493/14 ,  H01L51/005 ,  H01L51/0053 ,  H01L51/5048 ,  H01L2251/552

摘要： Provided are a hole-injecting material for an organic electroluminescent device (organic EL device) exhibiting high luminous efficiency at a low voltage and having greatly improved driving stability, and an organic EL device using the material. The hole-injecting material for an organic EL device is selected from benzenehexacarboxylic acid anhydrides, benzenehexacarboxylic acid imides, or N-substituted benzenehexacarboxylic acid imides. Further, the organic EL device has at least one light-emitting layer and at least one hole-injecting layer between an anode and a cathode arranged opposite to each other, and includes the above-mentioned hole-injecting material for an organic EL device in the hole-injecting layer. The organic EL device may contain a hole-transporting material having an ionization potential (IP) of 6.0 eV or less in the hole-injecting layer or a layer adjacent to the hole-injecting layer.

摘要翻译： 本发明提供用于在低电压下显示出高发光效率并且具有极大改进的驱动稳定性的有机电致发光器件（有机EL器件）的空穴注入材料以及使用该材料的有机EL器件。 用于有机EL器件的空穴注入材料选自苯六羧酸酐，苯六羧酸酰亚胺或N-取代的苯六羧酸酰亚胺。 此外，有机EL元件在相对配置的阳极和阴极之间具有至少一层发光层和至少一层空穴注入层，在上述有机EL元件中含有上述空穴注入材料 空穴注入层。 有机EL元件可以在空穴注入层或与空穴注入层相邻的层中含有具有6.0eV以下的电离势（IP）的空穴传输材料。

公开(公告)号：EP2256842A1

公开(公告)日：2010-12-01

申请号：EP09721926.5

申请日：2009-02-27

申请人： Nippon Steel Chemical Co., Ltd.

发明人： FUKUMATSU, Takayuki ,  YAMAMOTO, Toshihiro ,  NOGUCHI, Katsuhide ,  ICHIHASHI, Ikumi

IPC分类号： H01L51/50 ,  C07D487/04

CPC分类号： C07D487/04 ,  C07D471/04 ,  H01L51/0072 ,  H01L51/0084 ,  H01L51/0085 ,  H01L51/0086 ,  H01L51/0087 ,  H01L51/5048

摘要： Disclosed is an organic electroluminescent device (organic EL device) which can achieve high efficiency and long lifetime even when driven at low voltage. The organic El device comprises at least a light-emitting layer and an electron-transporting layer between an anode and a cathode facing each other. The electron-transporting layer consists of two layers, namely, a first electron-transporting layer and a second electron-transporting layer and the first electron-transporting layer and the second electron-transporting layer are arranged sequentially in this order from the light-emitting layer side to the cathode side. The first electron-transporting layer contains an indole derivative in which the ring nitrogen atom is substituted with an aromatic group and an aromatic ring is fused to the indole ring.

摘要翻译： 本发明公开了即使在低电压下驱动时也能够实现高效率和长寿命的有机电致发光器件（有机EL器件）。 有机电致发光装置至少包括在彼此面对的阳极和阴极之间的发光层和电子传输层。 电子传输层由两层组成，即第一电子传输层和第二电子传输层，并且第一电子传输层和第二电子传输层从发光层开始依次排列 层侧朝向阴极侧。 第一电子传输层含有吲哚衍生物，其中环氮原子被芳族基团取代并且芳族环与吲哚环稠合。