Asymmetric styryl derivatives and organic light emitting diode prepared using the same
AssigneeDoosan Corporation
InventorsTae-Hyung Kim, Jin-Seok Hong, Kyoung-Soo Kim, Sang-Do Lee
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Abstract
Disclosed are asymmetric styryl derivatives and an organic light emitting diode prepared using the same. More particularly, there are provided asymmetric styryl derivatives that can provide a blue organic light emitting diode with superior thermal stability, as well as improved luminous efficiency, improved brightness, and extended lifetime, by synthesizing a novel thermally stable compound with a styryl structure represented by Formula 1, and using the compound as a dopant in an organic light emitting layer (EML) of a multilayered organic light emitting diode, and an organic light emitting diode prepared by the same.
Claims6
An asymmetric styryl derivative represented by the following Formula 1:
- wherein, R1 to R8, and R10 to R12 may be the same or different, and each independently represents hydrogen, a substituted or unsubstituted C1˜C30 alkyl group, a substituted or unsubstituted C1˜C30 alkoxy group, a substituted or unsubstituted C6˜C40 aryl group, a substituted or unsubstituted C6˜C40 aryloxy group, a substituted or unsubstituted C1˜C30 heterocyclic group, an amino group, an alkylamino group, a cyano group, a nitro group, a hydroxyl group, or a halogen atom;
- R9 represents hydrogen, a substituted or unsubstituted C1˜C30 alkyl group, a substituted or unsubstituted C1˜C30 alkoxy group, a substituted or unsubstituted C6˜C40 aryloxy group, an amino group, an alkylamino group, a cyano group, a nitro group, a hydroxyl group, or a halogen atom;
- A, B, C, and D may be the same or different, and each independently represents a substituted or unsubstituted phenyl group, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthalene group, a substituted or unsubstituted C6˜C40 aryl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted anthracene group, or a substituted or unsubstituted C1-C30 alkyl group;
- and
- the substituted groups are each independently substituted with one or more substituents selected from the group consisting of a halogen atom, a C1-C30 alkyl group, a C1-C30 alkoxy group, a C6-C40 aryloxy group, a C6-C40 arylalkyl group, a nitro group, a cyano group, an amino group in which a hydrocarbon of C1-C30 is substituted, a C6-C40 aryl group, and a C1-C30 heterocyclic group.
An asymmetric styryl derivative selected from the group consisting of compounds represented by the following Formulas:
An organic light emitting diode comprising the organic light emitting layer, wherein the organic light emitting layer comprises a asymmetric styryl derivative represented by the following Formula 1:
- wherein, R1 to R8, and R10 to R12 may be the same or different, and each independently represents hydrogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C40 aryl group, a substituted or unsubstituted C6-C40 aryloxy group, a substituted or unsubstituted C1-C30 heterocyclic group, an amino group, an alkylamino group, a cyano group, a nitro group, a hydroxyl group, or a halogen atom;
- R9 represents hydrogen, a substituted or unsubstituted C1˜C30 alkyl group, a substituted or unsubstituted C1˜C30 alkoxy group, a substituted or unsubstituted C6˜C40 aryloxy group, an amino group, an alkylamino group, a cyano group, a nitro group, a hydroxyl group, or a halogen atom;
- A, B, C, and D may be the same or different, and each independently represents a substituted or unsubstituted phenyl group, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthalene group, a substituted or unsubstituted C6-C40 aryl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted anthracene group, or a substituted or unsubstituted C1-C30 alkyl group;
- and
- the substituted groups are each independently substituted with one or more substituents selected from the group consisting of a halogen atom, a C1-C30 alkyl group, a C1-C30 alkoxy group, a C6-C40 aryloxy group, a C6-C40 arylalkyl group, a nitro group, a cyano group, an amino group in which a hydrocarbon of C1-C30 is substituted, a C6-C40 aryl group, and a C1-C30 heterocyclic group.
Dependencies are inferred from the claim text.