申请人:Begley William J.
公开号:US20090108735A1
公开(公告)日:2009-04-30
The invention provides an OLED device comprising a cathode, an anode, and having there between a light-emitting layer, further comprising, between the cathode and the light emitting layer, a non-luminescent electron transporting layer containing a compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus and desirably comprises still further an additional layer containing an organic alkali metal compound, located between the cathode and the electron transporting layer.
Devices of the invention provide improvement in features such as efficiency, drive voltage, and operational stability.
本发明提供了一种OLED器件,包括阴极、阳极和在其之间具有发光层,进一步包括在阴极和发光层之间的非发光电子传输层,其中该电子传输层含有一种带有7,10-二芳基取代荧蒽核的化合物,该荧蒽核上没有芳环并且最好还包括一种含有有机碱金属化合物的附加层,位于阴极和电子传输层之间。本发明的器件提供了效率、驱动电压和操作稳定性等方面的改进。