Triazine-based compound, method of making the same, and an organic light-emitting device including the same

A method of making a triazine-based compound having three biphenyl groups, comprising:

• reacting a triazine ring-containing compound with a first biphenyl compound such that the biphenyl compound is bonded to a carbon of the triazine ring, wherein:
• the first biphenyl compound includes moieties Ra and Rb:
• Ra and Rb are each independently one of:
• hydrogen, a substituted C1-30 alkyl group, an unsubstituted C1-30 alkyl group, a substituted C6-50 aryl group, an unsubstituted C6-50 aryl group, a substituted C4-50 heteroaryl group, and an unsubstituted C4-50 heteroaryl group, and
• at least one of Ra and Rb is:
• a substituted C1-30 alkyl group, an unsubstituted C1-30 alkyl group, a substituted C6-50 aryl group, an unsubstituted C6-50 aryl group, a substituted C4-50 heteroaryl group, and an unsubstituted C4-50 heteroaryl group.

An organic light-emitting device, comprising:

• a first electrode;
• a second electrode;
• and
• at least one organic layer interposed between the first and second electrodes, wherein the at least one organic layer includes a triazine-based compound having three biphenyl groups, represented by structure 1, below,
• wherein R1 through R18 are each independently one of:
• hydrogen, a substituted C1-30 alkyl group, an unsubstituted C1-30 alkyl group, a substituted C6-50 aryl group, an unsubstituted C6-50 aryl group, a substituted C4-50 heteroaryl group, and an unsubstituted C4-50 heteroaryl group, and
• at least one of R1, R2, R7, R8, R13 and R14 is one of:
• a substituted C1-30 alkyl group, an unsubstituted C1-30 alkyl group, a substituted C6-50 aryl group, an unsubstituted C6-50 aryl group, a substituted C4-50 heteroaryl group, and an unsubstituted C4-50 heteroaryl group.