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Organic light emitting materials and devices

  • US 6,687,266 B1
  • Filed: 11/08/2002
  • Issued: 02/03/2004
  • Est. Priority Date: 11/08/2002
  • Status: Expired due to Term
First Claim
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1. An organic light emitting device, comprising:

  • (a) an anode;

    (b) a cathode; and

    (c) an emissive layer disposed between the anode and the cathode, the emissive layer including a material having a ligand having the structure;

    embedded imagewherein the ligand is attached to a metal having an atomic weight greater than 40, and A is selected from the group consisting of aryl and heteroaryl rings, and B is an aryl ring, and R″

    is selected from the group consisting of hydrogen and any substituent.

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