Organometallic complex for organic light-emitting layer and organic light-emitting diode using the same

An organometallic complex represented by Formula 1:

• wherein
• each of R1 to R12 is independently selected from the group consisting of hydrogen, deuterium, halogen, substituted or unsubstituted C1-C12 alkyl, substituted or unsubstituted C6-C40 arylamino, substituted or unsubstituted C3-C40 aryloxy, substituted or unsubstituted C6-C40 aryl, substituted or unsubstituted C3-C40 heteroaryl, germanium, phosphorus and boron;
• and
• each of A1 to A3 is substituted or unsubstituted C6-C40 aryl excepting naphthalene, phenanthrene and anthracene, or hydrogen, and may be linked with each other to form a condensed ring.