An organic electroluminescence device which includes an anode, a cathode, a hole transport layer, an electron transport layer, and at least one organic luminescent medium doped with a pyrazolo[3,4b]quinoxaline derivative is disclosed. The present device provides improved efficiency, and the emission band associated therewith is surprisingly narrow. The improved green emitting organic electroluminescence device exhibits high color purity.
本发明公开了一种有机电致发光器件,包括阳极、阴极、空穴传输层、电子传输层和至少一种掺杂有
吡唑并[3,4b]
喹啉衍
生物的有机发光介质。该器件提供了改进的效率,并且与之相关的发射带宽惊人地窄。改进的绿色发射有机电致发光器件表现出高色纯度。