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Charge injection auxiliary material and organic electroluminescence device containing the same

  • US 5,536,949 A
  • Filed: 03/15/1994
  • Issued: 07/16/1996
  • Est. Priority Date: 08/28/1992
  • Status: Expired due to Term
First Claim
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1. A functional layer of an organic electron device, said functional layer comprising a positive-hole transporting organic substance which is subjected to a positive-hole injection from an external layer and has enhanced positive-hole injection properties by incorporation of a charge injection auxiliary material in said functional layer, said charge injection auxiliary material comprising a stilbene, distyrylarylene or tris(styrylarylene) compound, said charge injection auxiliary material being in an amount of 0.05 to 9% by weight based on the weight of the positive-hole transporting organic substance.

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