公开(公告)号：US20120061656A1

公开(公告)日：2012-03-15

申请号：US13298528

申请日：2011-11-17

申请人： Satoru OHUCHI ,  Yoshiaki TSUKAMOTO ,  Takahiro KOMATSU ,  Kei SAKANOUE

发明人： Satoru OHUCHI ,  Yoshiaki TSUKAMOTO ,  Takahiro KOMATSU ,  Kei SAKANOUE

IPC分类号： H01L33/02

CPC分类号： H01L51/5088 ,  H01L51/5004 ,  H01L2251/552

摘要： An organic light-emitting element includes an anode, a functional layer, and a hole injection layer between the anode and the functional layer. The functional layer contains an organic material. The hole injection layer injects holes to the functional layer. The hole injection layer comprises tungsten oxide and includes an occupied energy level that is approximately 1.8 electron volts to approximately 3.6 electron volts lower than a lowest energy level of a valence band of the hole injection layer in terms of binding energy.

摘要翻译： 有机发光元件包括在阳极和功能层之间的阳极，功能层和空穴注入层。 功能层含有有机材料。 空穴注入层向功能层注入空穴。 空穴注入层包括氧化钨，并且包括比结合能方面的空穴注入层的价带的最低能级低约1.8电子伏特至约3.6电子伏的占有能级。