| 摘要 |
A process for preparing an organic electroluminescent device having a transparent substrate, a transparent electrode layer, a metallic electrode layer, and an organic interlayer containing an electronically active material dispersed in a matrix of polyimide, characterized in that the organic interlayer is prepared by depositing the vapors of a dianhydride, a diamine and the electronically active material to form a polyimide precursor layer containing the active material dispersed therein and thermally imidizing the polyimide precursor layer. The organic luminescent device thus obtained has improved luminous efficiency, thermal stability, interfacial surface roughness and high bulk density of the layer.
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