Aromatic amine derivative, light-emitting element, light-emitting device, electronic device, and lighting device

Abstract

Provided is a novel aromatic amine derivative represented by General Formula (G1) below. (In the formula, A represents oxygen or sulfur, and R1 to R7 individually represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, α1 and α2 individually represent a substituted or unsubstituted phenylene group. Further, Ar1 represents a substituted or unsubstituted condensed aromatic hydrocarbon having 14 to 18 carbon atoms included in a ring. Further, Ar2 represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms included in a ring. Further, j and n are individually 0 or 1, and p is 1 or 2.)

1 . (canceled) 
     
     
         2 . A light-emitting element comprising:
 an anode,   a first layer having a first organic compound over the anode,   a second layer having a second organic compound on the first layer,   a first light-emitting layer having an aromatic amine compound and a host material on the second layer,   a third layer having a third organic compound on the light-emitting layer, and   a cathode over the third layer,   wherein:   the aromatic amine compound represented by Formula (G1),   
       
         
           
           
               
               
           
         
         A represents oxygen or sulfur, 
         R 1  to R 7  individually represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group, 
         α 1  and α 2  individually represent a substituted or unsubstituted phenylene group, 
         Ar 1  represents a substituted or unsubstituted condensed aromatic hydrocarbon having 14 to 18 carbon atoms included in a ring, 
         Ar 2  represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms included in a ring, 
         j and n are individually 0 or 1, and 
         p is 1 or 2, 
         a difference between a HOMO level of the first organic compound and a HOMO level of the second organic compound is less than or equal to 0.2 eV, 
         a difference between the HOMO level of the second organic compound and a HOMO level of the host material is less than or equal to 0.4 eV, and 
         a difference between a LUMO level of the host material and a LUMO level of the third organic compound is less than or equal to 0.4 eV. 
       
     
     
         3 . The light-emitting element according to  claim 2 ,
 wherein the first organic compound is a first aromatic amine compound or an anthracene compound,   wherein the second organic compound is a second aromatic amine compound,   wherein the host material is an aromatic hydrocarbon compound, and   wherein the third organic compound is a heterocyclic compound.   
     
     
         4 . The light-emitting element according to  claim 2 ,
 wherein Ar 1  in Formula (G1) is Formula (Ar1-1) or (Ar1-2),   
       
         
           
           
               
               
           
         
         wherein R 8  to R 10  individually represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group, 
         wherein p is 1 when Ar 1  in Formula (G1) is Formula (Ar1-1), and 
         wherein p is 2 when Ar 1  in Formula (G1) is Formula (Ar1-2). 
       
     
     
         5 . The light-emitting element according to  claim 2 , wherein A is oxygen. 
     
     
         6 . The light-emitting element according to  claim 2 , further comprising:
 a fourth layer having a fourth organic compound over the third layer, and   a second light-emitting layer having the aromatic amine compound between the fourth layer and the cathode.   
     
     
         7 . The light-emitting element according to  claim 5 , wherein the light-emitting element emits white. 
     
     
         8 . The light-emitting element according to  claim 5 , wherein the fourth layer has a fifth organic compound having a fluorine atom. 
     
     
         9 . A light-emitting element comprising:
 an anode,   a first layer having a first organic compound over the anode,   a second layer having a second organic compound on the first layer,   a light-emitting layer having an aromatic amine compound and a host material on the second layer,   a third layer having a third organic compound on the light-emitting layer, and   a cathode over the third layer,   wherein:   the aromatic amine compound represented by Formula (G3),   
       
         
           
           
               
               
           
         
         A represents oxygen or sulfur, 
         R 1  to R 7 , R 8 , and R 10  individually represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group, 
         α 1  represents a substituted or unsubstituted phenylene group, 
         Ar 1  represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms included in a ring, and 
         n is 0 or 1, 
         a difference between a HOMO level of the first organic compound and a HOMO level of the second organic compound is less than or equal to 0.2 eV, 
         a difference between the HOMO level of the second organic compound and a HOMO level of the host material is less than or equal to 0.4 eV, and 
         a difference between a LUMO level of the host material and a LUMO level of the third organic compound is less than or equal to 0.4 eV. 
       
     
     
         10 . The light-emitting element according to  claim 9 ,
 wherein the first organic compound is a first aromatic amine compound or an anthracene compound,   wherein the second organic compound is a second aromatic amine compound,   wherein the host material is an aromatic hydrocarbon compound, and   wherein the third organic compound is a heterocyclic compound.   
     
     
         11 . The light-emitting element according to  claim 9 , wherein A is oxygen. 
     
     
         12 . The light-emitting element according to  claim 9 , further comprising:
 a fourth layer having a fourth organic compound over the third layer, and   a second light-emitting layer having the aromatic amine compound between the fourth layer and the cathode.   
     
     
         13 . The light-emitting element according to  claim 12 , wherein the light-emitting element emits white. 
     
     
         14 . The light-emitting element according to  claim 12 , wherein the fourth layer has a fifth organic compound having a fluorine atom.