Heterocyclic compound and organic light emitting device using same
The present application provides a hetero-cyclic compound capable of significantly enhancing lifespan, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the hetero-cyclic compound in an organic compound layer.
1. A hetero-cyclic compound represented by the following Chemical Formula] 2 or 3:
wherein, in Chemical Formula 2 and 3,
at least one of R1 to R5 is represented by -(L2)p-(Z2)q and the rest are hydrogen; or deuterium,
at least one of R12 to R16 is represented by -(L3)r-(Z3)s, and the rest are hydrogen; or deuterium,
L2 and L3 are the same as or different from each other, and each independently a direct bond; or a substituted or unsubstituted C 6 to C 60 arylene group,
Z2 and Z3 are the same as or different from each other, and each independently selected from the group consisting of a substituted or unsubstituted pyridine group; a substituted or unsubstituted pyrimidine group; a substituted or unsubstituted triazine group; a substituted or unsubstituted phenanthroline group; a substituted or unsubstituted quinoline group; a substituted or unsubstituted carbazole group; a substituted or unsubstituted dibenzofuran group; a substituted or unsubstituted dibenzothiophene group; a substituted or unsubstituted anthracene group; a substituted or unsubstituted phenanthrene group; a substituted or unsubstituted biphenyl group; a substituted or unsubstituted naphthyl group; and —P(═O)RR′,
p and r are an integer of 0 to 4;
q and s are an integer of 1 to 4;
R6 to R11 are hydrogen or deuterium; and
R, and R′ are the same as or different from each other, and each independently hydrogen; deuterium; —CN; a substituted or unsubstituted C 1 to C 60 alkyl group; a substituted or unsubstituted C 3 to C 60 cycloalkyl group; a substituted or unsubstituted C 6 to C 60 aryl group; or a substituted or unsubstituted C 2 to C 60 heteroaryl group.
2. The hetero-cyclic compound of claim 1 , wherein Chemical Formula 2 or 3 is represented by any one of the following compounds:
3. An organic light emitting device comprising:
an anode;
a cathode; and
one or more organic material layers provided between the anode and the cathode,
wherein one or more layers of the organic material layers comprise the hetero-cyclic compound of claim 1 .
4. The organic light emitting device of claim 3 , wherein the organic material layer comprises at least one of a hole blocking layer, an electron injection layer and an electron transfer layer, and at least one of the hole blocking layer, the electron injection layer and the electron transfer layer comprises the hetero-cyclic compound.
5. The organic light emitting device of claim 3 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises the hetero-cyclic compound.
6. The organic light emitting device of claim 3 , wherein the organic material layer comprises one or more of a hole injection layer, a hole transfer layer, and a layer carrying out hole injection and hole transfer at the same time, and one of the above-mentioned layers comprises the hetero-cyclic compound.
7. The organic light emitting device of claim 3 , wherein the organic material layer comprises a charge generation layer, and the charge generation layer comprises the hetero-cyclic compound.
8. The organic light emitting device of claim 3 , comprising:
an anode;
a first stack provided on the anode and comprising a first light emitting layer;
a charge generation layer provided on the first stack;
a second stack provided on the charge generation layer and comprising a second light emitting layer; and
a cathode provided on the second stack.