Organic electroluminescence device

Abstract

A material for a light emitting device containing a compound represented by the following formula (1): wherein each A independently represents a nitrogen atom or a carbon atom, which may have a substituent, and each of the rings consisting of A and nitrogen atoms independently represents an aromatic ring or an aromatic heterocyclic ring; and L represents a divalent linking group.

1 . A material for a light emitting device comprising a compound represented by the following formula (1): 
       
         
           
           
               
               
           
         
         wherein each A independently represents a nitrogen atom or a carbon atom, which may have a substituent, each of the rings consisting of A and nitrogen atoms independently represents an aromatic ring or an aromatic heterocyclic ring; and 
         L represents a divalent linking group. 
       
     
     
         2 . The material for a light emitting device according to  claim 1 ,
 wherein the compound represented by formula (1) is a compound represented by the following formula (2):   
       
         
           
           
               
               
           
         
         wherein each of R 1  and R 2  independently represents a hydrogen atom or a hydrocarbon group, and they may be linked to each other to form a ring; 
         each A independently represents a nitrogen atom or a carbon atom, a ring consisting of A, carbon atoms and nitrogen atoms represents an aromatic heterocyclic ring; 
         n represents an integer of 1 or 2; and 
         each of R 11  to R 18  independently represents a hydrogen atom or a substituent. 
       
     
     
         3 . The material for a light emitting device according to  claim 2 ,
 wherein the compound represented by formula (2) is a compound represented by the following formula (3):   
       
         
           
           
               
               
           
         
         wherein each of R 1  and R 2  independently represents a hydrogen atom or a hydrocarbon group; 
         n represents an integer of 1 or 2; and 
         each of R 11 , R 13 , R 14  and R 17  independently represents a hydrogen atom or a substituent. 
       
     
     
         4 . The material for a light emitting device according to  claim 2 ,
 wherein the compound represented by formula (2) is a compound represented by the following formula (4):   
       
         
           
           
               
               
           
         
         wherein each of R 1  and R 2  independently represents a hydrogen atom or a hydrocarbon group; 
         n represents an integer of 1 or 2; and 
         each of R 11 , R 13 , R 14  and R 17  independently represents a hydrogen atom or a substituent. 
       
     
     
         5 . The material for a light emitting device according to  claim 2 ,
 wherein at least one of R 12  to R 18  in formula (2) represents a hydrocarbon group having 1 to 10 carbon atoms.   
     
     
         6 . An organic electroluminescence device comprising:
 a pair of electrodes; and   an organic layer including a light emitting layer between the pair of electrodes,   wherein the organic layer contains the compound represented by any of formulae (1) to (4) according to  claim 1 .   
     
     
         7 . The organic electroluminescence device according to  claim 6 ,
 wherein the layer containing the compound represented by formula (1) is the light emitting layer.   
     
     
         8 . The organic electroluminescence device according to  claim 6 ,
 wherein the light emitting layer further contains a hydrocarbon compound.   
     
     
         9 . The organic electroluminescence device according to  claim 8 ,
 wherein the hydrocarbon compound is a compound represented by the following formula (VI):   
       
         
           
           
               
               
           
         
         wherein each of R 4 , R 6 , R 8 , R 10 , X 4  to X 15  independently represents a hydrogen atom or a substituent. 
       
     
     
         10 . The organic electroluminescence device according to  claim 6 ,
 wherein the electrodes include an anode,   a charge transporting layer is provided between the light emitting layer and the anode, and   the charge transporting layer contains a carbazole compound.   
     
     
         11 . The organic electroluminescence device according to  claim 10 ,
 wherein the carbazole compound is represented by the following formula (a):   
       
         
           
           
               
               
           
         
         wherein R represents a substituent capable of substituting on the hydrogen atom of the compound; 
         when there are two or more R's, each R may be the same with or different from every other R; and 
         n represents an integer of 0 to 8. 
       
     
     
         12 . The organic electroluminescence device according to  claim 10 ,
 wherein the carbazole compound is represented by the following formula (b):   
       
         
           
           
               
               
           
         
         wherein R represents a substituent capable of substituting on the hydrogen atom of the compound; 
         when there are two or more R's, each R may be the same with or different from every other R; and 
         n represents an integer of 0 to 8. 
       
     
     
         13 . A display using the organic electroluminescence device according to  claim 6 . 
     
     
         14 . An illuminating apparatus using the organic electroluminescence device according to  claim 6 .