We previously reported that Ir (6-F-2, 3-dpqx-(OMe) 2) 2 (acac)(6-F-2, 3-dpqx-(OMe) 2= 6- fluoro-2, 3-bis (4-methoxylphenyl) quinoxaline) exhibited photoluminescence (PL) and electroluminescence (EL) emission at 645 and 667 nm, respectively. To modulate the emission maxima toward the saturated red chromacity, a new main ligand and its iridium complexes were prepared, and their photophysical properties were investigated. As a ...