Light-emitting material, and organic light-emitting element

Abstract

The compound represented by the following general formula is useful as a light-emitting material for an organic light-emitting device. Z 1 , Z 2 and Z 3 in the following general formula each independently represent a substituent.

1 . An organic light-emitting device comprising a compound represented by the formula (2) below and a host material in a light-emitting layer: 
       
         
           
           
               
               
           
         
         wherein Ar 1 , Ar 2 , Ar 3 , Ar 4 , Ar 5  and Ar 6  each independently represent a substituted or unsubstituted aryl group. 
       
     
     
         2 . The organic light-emitting device according to  claim 1 , wherein the light-emitting layer contains the compound in an amount of 50% by weight or less. 
     
     
         3 . The organic light-emitting device according to  claim 1 , wherein the light-emitting layer contains the compound in an amount of 20% by weight or less. 
     
     
         4 . The organic light-emitting device according to  claim 1 , wherein the light-emitting layer contains the compound in an amount of 10% by weight or less. 
     
     
         5 . The organic light-emitting device according to  claim 1 , wherein Ar 1 , Ar 2 , Ar 3 , Ar 4 , Ar 5  and Ar 6  are all the same. 
     
     
         6 . The organic light-emitting device according to  claim 1 , which emits delayed fluorescent light.