以新的稀土红色荧光络合物— Eu( TTA) m 复合体系作为发光层 ,用不同载流子传输材料充当电子传输层做成双层器件 ,研究了双层器件的电致发光特性。对于空穴传输材料 ,高场下器件的电流表现为体内电阻限制 ;而对于电子传输材料 ,器件的电流表现为电极限制。从光谱的变化 ,可明显看出电场对复合区域的影响 A new rare earth red fluorescent complex - Eu (TTA) m composite system was used as a light-emitting layer, and different carrier-transporting materials were used as the electron transport layer to make a bilayer device. The electroluminescent properties of the bilayer device were investigated. For hole-transporting materials, the currents in devices under high field appear as in-body resistance limits, and for electron-transport materials, the device current appears as electrode limits. From the change of the spectrum, it is obvious that the influence of the electric field on the composite area