公开(公告)号：US20140014937A1

公开(公告)日：2014-01-16

申请号：US14007440

申请日：2012-03-09

申请人： Nobuhiro Ide ,  Norihiro Ito ,  Hiroya Tsuji ,  Yuko Suzuka

发明人： Nobuhiro Ide ,  Norihiro Ito ,  Hiroya Tsuji ,  Yuko Suzuka

IPC分类号： H01L51/50

CPC分类号： H01L51/5008 ,  H01L51/5044 ,  H01L51/5278

摘要： Provided is an organic electroluminescent element superior in long-term durability and lifetime characteristics. The organic electroluminescent element has a structure where plurality of light-emitting layers formed via an intermediate layer are interposed between a positive electrode and a negative electrode. The intermediate layer has a mixed layer, a first layer, and a hole-injection layer which are formed in this order from the positive electrode to the negative electrode, the mixed layer containing an electron-donating substance and an electron-transporting organic material, and the first layer being made of an electron-transporting material. The first layer has a thickness in a range of 0.2 to 2.0 nm. The hole-injection layer consists of an electro-accepting organic material.

摘要翻译： 提供了长期耐久性和寿命特性优异的有机电致发光元件。 有机电致发光元件具有通过中间层形成的多个发光层插入在正极和负极之间的结构。 中间层具有从正极到负极的顺序形成的混合层，第一层和空穴注入层，含有供电子物质和电子传输有机材料的混合层， 并且第一层由电子传输材料制成。 第一层的厚度为0.2〜2.0nm。 空穴注入层由电接收有机材料构成。

公开(公告)号：US09012902B2

公开(公告)日：2015-04-21

申请号：US14007440

申请日：2012-03-09

申请人： Nobuhiro Ide ,  Norihiro Ito ,  Hiroya Tsuji ,  Yuko Suzuka

发明人： Nobuhiro Ide ,  Norihiro Ito ,  Hiroya Tsuji ,  Yuko Suzuka

IPC分类号： H01L51/50 ,  H01L51/52

CPC分类号： H01L51/5008 ,  H01L51/5044 ,  H01L51/5278

摘要： Provided is an organic electroluminescent element superior in long-term durability and lifetime characteristics. The organic electroluminescent element has a structure where plurality of light-emitting layers formed via an intermediate layer are interposed between a positive electrode and a negative electrode. The intermediate layer has a mixed layer, a first layer, and a hole-injection layer which are formed in this order from the positive electrode to the negative electrode, the mixed layer containing an electron-donating substance and an electron-transporting organic material, and the first layer being made of an electron-transporting material. The first layer has a thickness in a range of 0.2 to 2.0 nm. The hole-injection layer consists of an electro-accepting organic material.

摘要翻译： 提供了长期耐久性和寿命特性优异的有机电致发光元件。 有机电致发光元件具有通过中间层形成的多个发光层插入在正极和负极之间的结构。 中间层具有从正极到负极的顺序形成的混合层，第一层和空穴注入层，含有供电子物质和电子传输有机材料的混合层， 并且第一层由电子传输材料制成。 第一层的厚度为0.2〜2.0nm。 空穴注入层由电接收有机材料构成。