Abstract
A novel luminescence boron compound, [2-(4,5- diphenyl-1-imidazole-2-yl) pyridine] (DPIP-BPh2), has been synthesized by the reaction of pyridine-imidazole- based ligand. The decomposed temperature of DPIP-BPh2 is high than 200°C by thermogravimetric analyzer (TGA). For the three-layer organic light-emitting diodes (OLED) with the structure ITO/NPB/DPIP-BPh2/Alq3/Mg-Ag, an emission band centering at 490 nm with the maximum brightness of 1300 cd/m2 was observed, indicating a perfect blue OLED (CIE= 0.22, 0.36). DPIP-BPh2 forms a new family of organometallic emitting materials which which may bring benefits to people in practical applications.