m-terphenyl compound derivatives and application for organic light emitting diode

An organic light emitting diode, comprising:

• a cathode;
• an anode;
• an emitting layer configured between the cathode and the anode;
• and
• an organic material layer configured between the emitting layer and the cathode, wherein the organic material layer comprises an m-terphenyl derivative having a structure of formula (I) or (II):
• wherein A and B are five-membered heterocyclic compounds selected from the group consisting of pyrrole, pyrazole, imidazole, 1,2,3-triazole, 1,2,4-triazole, 1,2,3,4-tetrazole, 1,2-thiazole, 1,3-thiazole and 1,3,4-thiadiazole, A and B are bonded to the m-terphenyl via N atom, each of substituents R, R1 and R2 is a member independently selected from the group consisting of H, halo, cyano, trifluoromethyl, amino, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C3-C20 cycloalkyl, C3-C20 cycloalkenyl, C1-C20 heterocycloalkyl, C1-C20 heterocycloalkenyl, aryl and heteroaryl.