Silicon-based compound and organic light-emitting diode comprising the same

A silicon-based compound represented by Formula 1 below:

• wherein, in Formula 1,
• X is selected from the group consisting of a substituted or unsubstituted C3-C10 cycloalkylene group, a substituted or unsubstituted C2-C10 heterocycloalkylene group, a substituted or unsubstituted C3-C10 cycloalkenylene group, a substituted or unsubstituted C2-C10 heterocycloalkenylene group, a substituted or unsubstituted C6-C60 arylene group, and a substituted or unsubstituted C2-C60 heteroarylene group;
• n is an integer of 1 to 5, wherein when n is 2 or greater, the two or more Xs are identical to or different from each other;
• Y is selected from the group consisting of a substituted or unsubstituted C6-C30 aryl group and a substituted or unsubstituted C2-C30 heteroaryl group;
• R1, R2, and R51 to R53 are each independently selected from the group consisting of a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C2-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C2-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C30 aryl group, and a substituted or unsubstituted C2-C30 heteroaryl group;
• R3 and R4 are each independently selected from the group consisting of a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C2-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C2-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 aryithiol group, a substituted or unsubstituted C2-C60 heteroaryl group, —N(Q1)(Q2), and —Si(Q3)(Q4)(Q5), wherein Q1 to Q5 are each independently a C1-C60 alkyl group, a C1-C60 alkoxy group, a C6-C60 aryl group, or a C2-C60 heteroaryl group;
• a is an integer of 0 to 5, wherein when a is 2 or greater, a number of R3s are identical to or different from each other;
• and
• b is an integer of 0 to 2, wherein when b is 2, the two R4s are identical to or different from each other.