Composition for organic optoelectronic device, organic optoelectronic device, and display device

Abstract

Disclosed are a composition for an organic optoelectronic device including at least one kind of a first host compound represented by the Chemical Formula 1 and at least one kind of a second host compound represented by the Chemical Formula 2, and an organic optoelectronic device and a display device including the composition.

1 . A composition for an organic optoelectronic device, comprising at least one kind of a first host compound represented by the following Chemical Formula 1, and at least one kind of a second host compound represented by the following Chemical Formula 2: 
       
         
           
           
               
               
           
         
         wherein, in the above Chemical Formula 1, 
         Z is independently N or CR a , 
         at least one of Z is N, 
         R 1  to R 10  and R a  are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C12 aryl group, or a combination thereof, 
         in the above Chemical Formula 1, the total number of 6-membered rings substituting the triphenylene group is less than or equal to 6, 
         L is a substituted or unsubstituted phenylene group, a substituted or unsubstituted biphenylene group or a substituted or unsubstituted terphenylene group, 
         n1 to n3 are independently 0 or 1, and
     n 1+ n 2+ n 3≧1,
 
 
       
       
         
           
           
               
               
           
         
         wherein, in the above Chemical Formula 2, 
         Y 1  is a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heteroarylene group, or a combination thereof, 
         Ar 1  is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, 
         R 11  to R 14  are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C50 aryl group, a substituted or unsubstituted C2 to C50 heteroaryl group, or a combination thereof, and 
         at least one of R 11  to R 14  and Ar 1  comprises a substituted or unsubstituted triphenylene group or a substituted or unsubstituted carbazole group. 
       
     
     
         2 . The composition for an organic optoelectronic device of  claim 1 , wherein the first host compound is represented by the following Chemical Formula 1-I or 1-II: 
       
         
           
           
               
               
           
         
         wherein, in the above Chemical Formula 1-I and 1-II, 
         Z is independently N or CR a , 
         at least one of Z is N, 
         R 1  to R 10  and R a  are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C12 aryl group, or a combination thereof, 
         in the above Chemical Formula 1-I and 1-II, the total number of 6-membered rings substituting the triphenylene group is less than or equal to 6, 
         L is a substituted or unsubstituted phenylene group, a substituted or unsubstituted biphenylene group or a substituted or unsubstituted terphenylene group, 
         n1 to n3 are independently 0 or 1, and
     n 1+ n 2+ n 3≧1.
 
 
       
     
     
         3 . The composition for an organic optoelectronic device of  claim 1 , wherein L of the above Chemical Formula 1 is a single bond, a substituted or unsubstituted phenylene group having a kink structure, a substituted or unsubstituted biphenylene group having a kink structure, or a substituted or unsubstituted terphenylene group having a kink structure. 
     
     
         4 . The composition for an organic optoelectronic device of  claim 3 , wherein L of the above Chemical Formula 1 is selected from a single bond or substituted or unsubstituted groups listed in the following Group 1: 
       
         
           
           
               
               
           
         
         wherein, in the Group 1, 
         R 15  to R 42  are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C3 to C30 heterocycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, a substituted or unsubstituted amine group, a substituted or unsubstituted C6 to C30 arylamine group, a substituted or unsubstituted C6 to C30 heteroarylamine group, a substituted or unsubstituted C1 to C30 alkoxy group, a halogen, a halogen-containing group, a cyano group, a hydroxyl group, an amino group, a nitro group, a carboxyl group, a ferrocenyl group, or a combination thereof. 
       
     
     
         5 . The composition for an organic optoelectronic device of  claim 1 , wherein the first host compound has at least two kink structures. 
     
     
         6 . The composition for an organic optoelectronic device of  claim 1 , wherein the first host compound is represented by the following Chemical Formula 1a or 1b: 
       
         
           
           
               
               
           
         
         wherein, in the above Chemical Formula 1a or 1b, 
         Z is independently N or CR a , 
         at least one of Z is N, 
         wherein in the above Chemical Formula 1a and 1b, the total number of 6-membered rings substituting the triphenylene group is less than or equal to 6, and 
         R 1  to R 10  and R a  are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C12 aryl group, or a combination thereof. 
       
     
     
         7 . The composition for an organic optoelectronic device of  claim 1 , wherein the first host compound is represented by one of the following Chemical Formulae 1c to 1t: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         wherein, in the above Chemical Formulae 1c to 1t, 
         Z is independently N or CR a , 
         at least one of Z is N, 
         wherein, in the above Chemical Formulae 1c to 1t, the total number of 6-membered rings substituting the triphenylene group is less than or equal to 6, 
         R 1  to R 10  and R a  are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C12 aryl group, or a combination thereof, and 
         R 60  to R 77  are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C3 to C30 heterocycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, a substituted or unsubstituted amine group, a substituted or unsubstituted C6 to C30 arylamine group, a substituted or unsubstituted C6 to C30 heteroarylamine group, a substituted or unsubstituted C1 to C30 alkoxy group, a halogen, a halogen-containing group, a cyano group, a hydroxyl group, an amino group, a nitro group, a carboxyl group, a ferrocenyl group, or a combination thereof. 
       
     
     
         8 . The composition for an organic optoelectronic device of  claim 1 , wherein the first host compound is compounds listed in the following Group 2: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
         9 . The composition for an organic optoelectronic device of  claim 1 , wherein the second host compound is represented by at least one of the following Chemical Formulae 2-I to 2-III: 
       
         
           
           
               
               
           
         
         wherein, in the above Chemical Formulae 2-I to 2-III, 
         Y 1  to Y 3  are independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heteroarylene group, or a combination thereof, 
         Ar 1  and Ar 2  are independently a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, and 
         R 11  to R 14  and R 43  to R 54  are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C50 aryl group, a substituted or unsubstituted C2 to C50 heteroaryl group, or a combination thereof. 
       
     
     
         10 . The composition for an organic optoelectronic device of  claim 9 , wherein Ar 1  and Ar 2  of the above Chemical Formula 2-I are independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthracenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted benzofuranyl group, a substituted or unsubstituted benzothiophenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyridyl group, a substituted or unsubstituted pyrimidinyl group, a substituted or unsubstituted pyrazinyl group, a substituted or unsubstituted triazinyl group, a substituted or unsubstituted triphenylene group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiopheneyl group, or combination thereof. 
     
     
         11 . The composition for an organic optoelectronic device of  claim 9 , wherein the compound represented by the Chemical Formula 2-I is selected from compounds listed in the following Group 5: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
         12 . The composition for an organic optoelectronic device of  claim 9 , wherein the compound represented by the above Chemical Formula 2-II is selected from compounds listed in the following Group 6: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
         13 . The composition for an organic optoelectronic device of  claim 9 , wherein the compound represented by the above Chemical Formula 2-III is selected from compounds listed in the following Group 7: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
     
     
         14 . The composition for an organic optoelectronic device of  claim 1 , wherein the first host compound and the second host compound are included in a weight ratio of 1:10 to 10:1. 
     
     
         15 . The composition for an organic optoelectronic device of  claim 1 , further comprising a phosphorescent dopant. 
     
     
         16 . An organic optoelectronic device, comprising
 an anode and a cathode facing each other,   at least one organic layer interposed between the anode and the cathode,   wherein the organic layer comprises the composition of  claim 1 .   
     
     
         17 . The organic optoelectronic device of  claim 16 , wherein
 the organic layer comprises an emission layer, and   the emission layer comprises the composition.   
     
     
         18 . A display device comprising the organic optoelectronic device of  claim 16 .