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分别以稀土配合物为发光中心，以PPV、Alq3为空穴输送层和电子输送层制备了结构为ITO／PPV／PVK：PBD：Eu（DBM）3／Alq3／Al的电致发光器件，其中发射层由旋涂法形成，该器件的最大亮度为52cd·m－2，且具有很好的单色性。
The electroluminescent devices with the structure of ITO / PPV / PVK: PBD: Eu (DBM) 3 / Alq3 / Al were prepared by using rare earth complex as the luminescent center and PPV, Alq3 as the hole transport layer and electron transport layer, respectively Emission layer formed by the spin-coating, the device maximum brightness of 52cd · m-2, and has good monochromaticity.