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INTERMEDIATE LAYERS TREATED BY CF4-PLASMA FOR STACKED ORGANIC LIGHT-EMITTING DEVICES

  • US 20060250079A1
  • Filed: 04/05/2006
  • Published: 11/09/2006
  • Est. Priority Date: 04/05/2005
  • Status: Abandoned Application
First Claim
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1. A stacked organic light emitting device comprising:

  • (a) an anode;

    (b) a cathode;

    (c) a plurality of emissive units disposed between the anode and the cathode, wherein the emissive units comprise at least a hole-transport layer and an electron-transport layer; and

    (d) an intermediate layer disposed between two adjacent said emissive units, wherein the intermediate layer consists of at least two sub-layers, a first sub-layer being formed of a material that can inject electrons into one emissive unit and a second sub-layer being formed of a material that can inject holes into the adjacent emissive unit, wherein a surface of said intermediate layer has been treated by a low pressure CF4-plasma.

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