ORGANIC MATERIAL AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
Disclosed are an organic composition including a compound represented by Chemical Formula 1, and an organic light emitting device including the composition. In Chemical Formula 1, A 1 , A 2 , A 3 , A 4 , B 1 , B 2 , B 3 and B 4 are independently selected from hydrogen, a C1 to C20 alkyl group, a C1 to C20 alkenyl group, an amino group, a C1 to C20 ether group, a C1 to C20 carboxyl group, a C1 to C20 ester group, a nitro group, a cyano group, a C3 to C30 aromatic group, and a halogen-containing group, provided that at least one of A 1 to A 4 and at least one of B 1 to B 4 are a substituted or unsubstituted aromatic group and form a fused ring structure by being bound to an adjacent substituent, M is a divalent or trivalent metal, X is oxygen (O) or sulfur (S), and y is 2 or 3.
1 . An organic material comprising a compound of the following Chemical Formula 1:
wherein, in Chemical Formula 1, A 1 , A 2 , A 3 , A 4 , B 1 , B 2 , B 3 and B 4 are independently selected from hydrogen, a C1 to C20 alkyl group, a C1 to C20 alkenyl group, an amino group, a C1 to C20 ether group, a C1 to C20 carboxyl group, a C1 to C20 ester group, a nitro group, a cyano group, a C3 to C30 aromatic group, and a halogen-containing group, provided that at least one of A 1 to A 4 and at least one of B 1 to to B 4 are a substituted or unsubstituted aromatic group and form a fused ring by being bound to an adjacent substituent,
M is a divalent or trivalent metal,
X is oxygen (O) or sulfur (S), and
y is 2 or 3.
2 . The organic material of claim 1 , wherein at least one of A 1 to A 4 comprise an aromatic group which exists in the same plane as an aromatic group bound to the A 1 to A 4 .
3 . The organic material of claim 2 , wherein the fused ring formed by linking the aromatic group included in at least one of A 1 to A 4 to the adjacent substituent comprises a fluorene structure.
4 . The organic material of claim 1 , wherein an aromatic group included in at least one of B 1 to B 4 exists in the same plane as an aromatic group bound to the B 1 to B 4 .
5 . The organic material of claim 4 , wherein the fused ring formed by linking the aromatic group included in at least one of B 1 to B 4 to the adjacent substituent comprises a fluorene structure.
6 . The organic material of claim 1 , wherein the aromatic group included in at least one of A 1 to A 4 and B 1 to B 4 and the adjacent substituent is represented by the following Chemical Formula 2 or 3.
wherein, in Chemical Formulae 2 and 3, R is selected from hydrogen, a C1 to C10 alkyl group, an amino group, a C1 to C10 alkyl amino group, a hydroxy group, a C1 to C10 alkoxy group, a C2 to C10 ester group, a nitro group, a halogen, a cyano group, and a substituted or unsubstituted C3 to C24 aromatic group.
7 . The organic material of claim 2 , wherein the compound comprises at least one of the compounds represented by the following Chemical Formulae 4 to 33:
8 . An organic light emitting device comprising:
a first electrode and a second electrode facing each other; and
an organic layer interposed between the first electrode and the second electrode,
the organic layer comprises a compound represented by the following Chemical Formula 1:
wherein, in Chemical Formula 1, A 1 , A 2 , A 3 , A 4 , B 1 , B 2 , B 3 and B 4 are independently selected from hydrogen, a C1 to C20 alkyl group, a C1 to C20 alkenyl to group, an amino group, a C1 to C20 ether group, a C1 to C20 carboxyl group, a C1 to C20 ester group, a nitro group, a cyano group, a C3 to C30 aromatic group, and a halogen-containing group, provided that at least one of A 1 to A 4 and at least one of B 1 to B 4 are a substituted or unsubstituted aromatic group and form a fused ring by being bound to an adjacent substituent,
M is a divalent or trivalent metal,
X is oxygen (O) or sulfur (S), and
y is 2 or 3.
9 . The organic light emitting device of claim 8 , wherein the aromatic group included in at least one of A 1 to A 4 exists in the same plane as an aromatic group bound to the A 1 to A 4 .
10 . The organic light emitting device of claim 9 , wherein the fused ring formed by linking the aromatic group included in at least one of A 1 to A 4 to the adjacent substituent comprises a fluorene structure.
11 . The organic light emitting device of claim 8 , wherein: the aromatic group included in at least one of B 1 to B 4 exists in the same plane as an aromatic group bound to the B 1 to B 4 .
12 . The organic light emitting device of claim 11 , wherein the fused ring formed by linking the aromatic group included in at least one of B 1 to B 4 to the adjacent substituent comprises a fluorene structure.
13 . The organic light emitting device of claim 8 , wherein the aromatic substituent (A m ) and the adjacent substituent (A m+1 or A m−1 ) are represented by the following Chemical Formula 2 or 3:
wherein, in Chemical Formulae 2 and 3, R is selected from hydrogen, a C1 to C10 alkyl group, an amino group, a C1 to C10 alkyl amino group, a hydroxy group, a C1 to C10 alkoxy group, a C2 to C10 ester group, a nitro group, a halogen, a cyano group, and a substituted or unsubstituted C3 to C24 aromatic group.
14 . The organic light emitting device of claim 8 , wherein the organic layer is an organic emission layer.
15 . The organic light emitting device of claim 8 , wherein the organic layer further comprises a dopant material.