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High efficiency transparent organic light emitting devices

  • US 6,885,149 B2
  • Filed: 10/28/2003
  • Issued: 04/26/2005
  • Est. Priority Date: 02/28/2000
  • Status: Expired due to Term
First Claim
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1. A method for fabricating a highly transparent and highly efficient organic light emitting device comprising:

  • preparing, in sequence on a substrate, an anode, an organic hole transporting layer, an organic electron transporting layer, a transparent electron injection layer, and a transparent, non-metallic, electron injecting cathode layer, wherein said transparent electron injection layer is a material selected from the group consisting of a material which acts as a hole blocking layer, a material which acts as an exciton blocking material and a material which acts as a combination hole and exciton blocking material; and

    wherein said preparing includes the step of doping said transparent electron injection layer with a metal to form a metal-doped transparent electron injection layer.

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