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Cyclooctatetraenes as electron transporters in organic light emitting diodes

  • US 6,506,505 B1
  • Filed: 08/16/1999
  • Issued: 01/14/2003
  • Est. Priority Date: 08/16/1999
  • Status: Expired due to Fees
First Claim
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1. An organic light emitting device comprising:

  • an anode;

    a hole transporting layer;

    an electron transporting layer comprising a substituted cyclooctatetraene, wherein the substituted cyclooctatetraene is selected from the group consisting of a cyclooctatetraene molecule of the formula embedded imagewherein R1 through R8 are selected from the group consisting of aryl and arylalkynyl groups which may be further substituted, wherein there is a first group of four members of the set R1 through R8 that are identical and there is a second group consisting of the remaining four members of the set R1 through R8 that are identical, with the proviso that the members of the first group are different from the members of the second group and no three adjacent members of the set R1 through R8 are identical; and

    a cathode.

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