Quinoxaline derivative, and light emitting element, licht emitting device and electronic appliance using the same
申请人:SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
公开号:EP2067778A1
公开(公告)日:2009-06-10
A quinoxaline-based, new bipolar organic compound is provided, and a light emitting element using the quinoxaline-based compound is demonstrated. The quinoxaline derivative of the invention has a structure in which carbon at one or both of the 2-position and the 3-position of the quinoxaline unit are bonded, via an arylene group, with an amine unit which has a substituted or unsubstituted five-membered ring or a substituted or unsubstituted condensed ring containing a five-membered ring structure. The quinoxaline-based compound was proven to possess bipolar characteristics in view of carrier transportation, which allows the fabrication of a light emitting element and an electronic appliance with a low driving voltage and low power consumption.
本发明提供了一种基于喹喔啉的新型双极有机化合物,并展示了一种使用该基于喹喔啉的化合物的发光元件。本发明的喹喔啉衍生物具有这样的结构:喹喔啉单元 2 位和 3 位中的一个或两个位置上的碳通过芳烯基与具有取代或未取代五元环或含有五元环结构的取代或未取代缩合环的胺单元键合。这种基于喹喔啉的化合物被证明在载流子传输方面具有双极特性,因此可以制造低驱动电压和低功耗的发光元件和电子设备。