公开(公告)号：US20160315265A1

公开(公告)日：2016-10-27

申请号：US15101561

申请日：2014-11-25

Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED

Inventor： Jeremy Burroughes ,  Tania Zuberi ,  Rajesh Kumar Janarthanan ,  Kandasamy Shanmugasundaram

IPC: H01L51/00 ,  C09K11/06 ,  C09K11/02 ,  C08G61/12 ,  C07D471/04

CPC classification number: H01L51/0035 ,  C07D471/04 ,  C08G61/12 ,  C08G61/122 ,  C08G2261/3241 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1466 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/56 ,  H01L2251/552

Abstract: A polymer comprises repeat units of formula (I): wherein: R1 independently in each occurrence is a substituent, and two substituents R1 may be linked to form a ring; R2 in each occurrence independently is H or a substituent, and two substituents R2 may be linked to form a ring; R3 independently in each occurrence is a substituent; Ar1 independently in each occurrence is an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; x is 0, 1 or 2; y is 0, 1 or 2; and z independently in each occurrence is 0, 1 or 2. Such repeat units have a relatively deep LUMO level that may reduce the barrier to transport of electrons from the electron-transporting layer to the light-emitting layer of an organic light emitting diode having an active layer comprising such a polymer.

Abstract translation: 聚合物包含式（I）的重复单元：其中：R 1在每次出现时独立地为取代基，并且两个取代基R 1可以连接形成环; R2各自独立地为H或取代基，两个取代基R2可以连接形成环; R3各自独立地为取代基; Ar1各自独立地为可以是未取代的或被一个或多个取代基取代的芳基或杂芳基; x是0,1或2; y为0,1或2; 并且z在每次出现时独立地为0,1或2.这样的重复单元具有相对较深的LUMO能级，其可以减少电子从电子传输层传输到具有有机发光二极管的有机发光二极管的发光层的障碍， 包含这种聚合物的活性层。