ORGANIC ELECTROLUMINESCENCE DEVICE AND POLYCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Samsung Display Co., Ltd.
公开号:US20200144503A1
公开(公告)日:2020-05-07
An organic electroluminescence device includes a first and electrodes, sandwiching the following layers: a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer. The emission layer includes a polycyclic compound represented by the following structure:
wherein each of X
1
to X
10
is independently carbon or nitrogen, and each of R
1
to R
5
is independently a hydrogen atom, a deuterium atom, a substituted or unsubstituted amine group, a substituted or unsubstituted aryl group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring. If all X
1
to X
10
are carbon, at least one of R
4
and R
5
is a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring.
一种有机电致发光器件包括第一和第二电极,夹在以下层之间:位于第一电极上的空穴传输区,位于空穴传输区上的发射层,位于发射层上的电子传输区。发射层包括由以下结构表示的多环化合物:其中X1至X10中的每一个独立地为碳或氮,R1至R5中的每一个独立地为氢原子、氘原子、取代或未取代的胺基团、6至30个碳原子的取代或未取代的芳基团以形成环,或2至30个碳原子的取代或未取代的杂芳基团以形成环。如果X1至X10都是碳,那么R4和R5中至少有一个是2至30个碳原子的取代或未取代的杂芳基团以形成环。