Organic electroluminescent materials and applications thereof

Organic electroluminescent materials and applications thereof

  • CN 104,419,415 A
  • Filed: 08/20/2014
  • Published: 03/18/2015
  • Est. Priority Date: 08/20/2013
  • Status: Active Application
First Claim
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1. a composition, it comprises:

  • the mixture of the first compound and the second compound;

    Wherein said first compound has the chemical structure different from described second compound;

    Wherein said first compound at room temperature can serve as the phosphorescent emitters in organic light-emitting device;

    Wherein said first compound has the vaporization temperature T1 of 150 DEG C to 350 DEG C;

    Wherein said second compound has the vaporization temperature T2 of 150 DEG C to 350 DEG C;

    Wherein the absolute value of T1-T2 is less than 20 DEG C;

    Wherein said first compound has concentration C 1 in described mixture, and is passing through in vacuum deposition tools 1 ×

    10 -6holder is to 1 ×

    10 -9under constant pressure between holder, evaporate in the film of described mixture formation on the surface apart from the described mixture predetermined distance location of evaporating under sedimentation rate and there is concentration C 2;

    And Wherein the absolute value of (C1-C2)/C1 is less than 5%.

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