ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure may be comprised in a light-emitting layer, and is effective for producing an organic electroluminescent device having high luminescent efficiency and/or excellent lifespan characteristic.
1 . An organic electroluminescent compound represented by the following formula 1:
wherein
R 1 to R 8 each independently represent hydrogen, deuterium, a halogen, a cyano, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted (5- to 30-membered)heteroaryl, with a proviso that one of R 2 to R 4 is bonded to R
R 9 to R 16 each independently represent hydrogen or deuterium;
Ar 1 represents a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted (5- to 30-membered)heteroaryl;
D N means that N hydrogen atoms are substituted with deuterium; and
N represents an integer of 8 to 50.
2 . The organic electroluminescent compound according to claim 1 , wherein formula 1 is represented by any one of the following formulas 1-1 to 1-3:
wherein
R 1 to R 8 , R 9 to R 18 , Ar 1 , and D N are as defined in claim 1 ; and
N represents an integer of 8 to 30.
3 . The organic electroluminescent compound according to claim 1 , wherein the substituents of the substituted alkyl, the substituted aryl, and the substituted heteroaryl in R 1 to R 8 , and Ar 1 each independently are at least one selected from the group consisting of deuterium; a halogen; a cyano; a carboxyl; a nitro; a hydroxyl; a (C1-C30)alkyl; a halo(C1-C30)alkyl; a (C2-C30)alkenyl; a (C2-C30)alkynyl; a (C1-C30)alkoxy; a (C1-C30)alkythio; a (C3-C30)cycloalkyl; a (C3-C30)cycloalkenyl; a (3- to 7-membered)heterocycloalkyl; a (C6-C30)aryloxy; a (C6-C30)arylthio; a (3- to 30-membered)heteroaryl unsubstituted or substituted with a (C6-C30)aryl(s); a (C6-C30)aryl unsubstituted or substituted with at least one of a (C1-C30)alkyl(s) and a (3- to 30-membered)heteroaryl(s); a tri(C1-C30)alkylsilyl; a tri(C6-C30)arylsilyl; a di(C1-C30)alkyl(C6-C30)arylsilyl; a (C1-C30)alkyldi(C6-C30)arylsilyl; an amino; a mono- or di-(C1-C30)alkylamino; a mono- or di-(C6-C30)arylamino; a (C1-C30)alkyl(C6-C30)arylamino; a (C1-C30)alkylcarbonyl; a (C1-C30)alkoxycarbonyl; a (C6-C30)arylcarbonyl; a di(C6-C30)arylboronyl; a di(C1-C30)alkylboronyl; a (C1-C30)alkyl(C6-C30)arylboronyl; a (C6-C30)aryl(C1-C30)alkyl; and a (C1-C30)alkyl(C6-C30)aryl.
4 . The organic electroluminescent compound according to claim 1 , wherein
R 1 to R 8 which are not bonded to
each independently represent hydrogen or deuterium; and
Ar 1 represents a substituted or unsubstituted (C6-C25)aryl, or a substituted or unsubstituted (5- to 20-membered)heteroaryl.
5 . The organic electroluminescent compound according to claim 1 , wherein
R 1 to R 8 which are not bonded to
each independently represent hydrogen or deuterium; and
Ar 1 represents a (C6-C25)aryl unsubstituted or substituted with at least one of a (C1-C6)alkyl(s), a (C6-C15)aryl(s), and a (5- to 15-membered)heteroaryl(s); or a (5- to 20-membered)heteroaryl unsubstituted or substituted with a (C6-C12)aryl(s).
6 . The organic electroluminescent compound according to claim 1 , wherein N represents an integer of 13 to 30.
7 . The organic electroluminescent compound according to claim 1 , wherein the compound represented by formula 1 is selected from the group consisting of the following compounds:
8 . An organic electroluminescent material comprising the organic electroluminescent compound according to claim 1 .
9 . An organic electroluminescent device comprising the organic electroluminescent compound according to claim 1 .
10 . The organic electroluminescent device according to claim 9 , wherein the organic electroluminescent compound is comprised in a light-emitting layer.