Compound and organic light emitting device using the same

An organic light emitting device, comprising:

• a first electrode;
• organic material layer(s) comprising a light emitting layer, wherein at least one layer of the organic material layer(s) includes the compound of Formula 1;
• and
• a second electrode;
• wherein the first electrode, the organic material layer(s), and the second electrode form layered structure,
• wherein X is C or Si;
• A is
• a is zero or positive integer;
• Y is a bond;
• bivalent aromatic hydrocarbons;
• bivalent aromatic hydrocarbons which are substituted with at least one substituent group selected from the group consisting of nitro, nitrile, halogen, alkyl, alkoxy, and amino groups;
• a bivalent heterocyclic group;
• or a bivalent heterocyclic group which is substituted with at least one substituent group selected from the group consisting of nitro, nitrile, halogen, alkyl, alkoxy, and amino groups;
• Y1 and Y2 are each bivalent aromatic hydrocarbons;
• bivalent aromatic hydrocarbons which are substituted with at least one substituent group selected from the group consisting of nitro, nitrile, halogen, alkyl, alkoxy, and amino groups;
• a bivalent heterocyclic group;
• or a bivalent heterocyclic group which is substituted with at least one substituent group selected from the group consisting of nitro, nitrile, halogen, alkyl, alkoxy, and amino groups;
• Z1 to Z4 are each independently hydrogen;
• aliphatic hydrocarbons having a carbon number of 1-20;
• aromatic hydrocarbons;
• aromatic hydrocarbons which are substituted with at least one substituent group selected from the group consisting of the nitro, nitrile, halogen, alkyl, alkoxy, amino, aromatic hydrocarbon, and heterocyclic groups;
• a silicon group substituted with aromatic hydrocarbons;
• a heterocyclic group;
• a heterocyclic group which is substituted with at least one substituent group selected from the group consisting of the nitro, nitrile, halogen, alkyl, alkoxy, amino, aromatic hydrocarbon, and heterocyclic groups;
• a thiophenyl group which is substituted with hydrocarbons having a carbon number of 1-20 or aromatic hydrocarbons having a carbon number of 6-20;
• or a boron group which is substituted with aromatic hydrocarbons;
• R1 to R11 are each independently hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, a substituted or un-substituted arylamine group, a substituted or unsubstituted heterocyclic group, an amino group, a nitrile group, a nitro group, a halogen group, an amide group, or an ester group, R1 to R11 may form aliphatic or hetero condensation rings along with adjacent groups;
• R12 to R15 are each independently hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, a substituted or un-substituted heterocyclic group, an amino group, a nitrile group, a nitro group, a halogen group, an amide group, or an ester group, R12 to R15 may form aliphatic or hetero condensation rings along with adjacent groups;
• and
• R7 and R8 may be directly connected to each other, or may form a condensation ring along with a group selected from the group consisting of O, S, NR, PR, C.dbd.O, CRR′, and SiRR′, wherein R and R′ each independently or collectively are hydrogen, a substituted or unsubstituted alkyl group, a substituted or un-substituted alkoxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted arylamine group, a substituted or unsubstituted heterocyclic group, a nitrile group, an amide group, or an ester group, and may form a condensation ring to form a spiro compound.