公开(公告)号：US20150311453A1

公开(公告)日：2015-10-29

申请号：US14647918

申请日：2013-11-12

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hiroya TSUJI ,  Satoshi OHARA ,  Nobuhiro IDE

IPC: H01L51/00

CPC classification number: H01L51/0072 ,  C07D413/14 ,  C07D471/04 ,  C07D487/22 ,  C07D519/00 ,  H01L51/0052 ,  H01L51/0067 ,  H01L51/007 ,  H01L51/0081 ,  H01L51/5088 ,  H01L51/5278 ,  H01L2251/301 ,  H01L2251/308 ,  H01L2251/558

Abstract: The organic electroluminescence element includes: a positive electrode; a negative electrode; a plurality of light emitting layers interposed between the positive electrode and the negative electrode; and an interlayer-provided between the plurality of light emitting layers. The interlayer includes: a first layer-containing a nitrogen-containing heterocyclic compound; an alkali metal layer containing an alkali metal; a second layer containing a nitrogen-containing heterocyclic compound; and a hole injection layer containing an electron-accepting organic material. The first layer, the alkali metal layer, the second layer, and the hole injection layer are arranged in this order from the positive electrode to the negative electrode. The second layer is thicker than the alkali metal layer.

Abstract translation: 有机电致发光元件包括：正极; 负极; 插入在正极和负极之间的多个发光层; 以及设置在所述多个发光层之间的中间层。 中间层包括：含有含氮杂环化合物的第一层; 含有碱金属的碱金属层; 含有含氮杂环化合物的第二层; 以及含有受电子有机材料的空穴注入层。 第一层，碱金属层，第二层和空穴注入层从正极到负极的顺序排列。 第二层比碱金属层厚。