本文报道了一种用于堆叠结构有机电致发光器件的新的电荷生成层:LiF/Al/V2O5,采用这种电荷生成层的堆叠器件的两个发光单元互相独立,不受影响.说明在外加电场下,这种电荷生成层具有向邻近的发光单元注入电子空穴的能力.而堆叠了两个相同发光单元的器件的电流效率在相同的电流密度下约为普通单层结构的1.7倍.同时这种电荷生成层避免了溅射indium tin oxide(ITO)和金属、有机物共掺,只需要热蒸发,生长工艺简单. In this paper, we report a novel charge generation layer (LiF / Al / V2O5) for stacked organic electroluminescent devices, in which the two light-emitting units of a stacked device using this charge generation layer are independent of each other, This charge generation layer has the ability to inject electron holes into adjacent light-emitting cells under an applied electric field, whereas the current efficiency of devices stacked with two identical light-emitting cells is about 1.7 times that of a common single-layer structure at the same current density At the same time, this charge generation layer avoids the sputtering indium tin oxide (ITO) and metal, organic co-doped, only need thermal evaporation, the growth process is simple.