2, 3-Di (pyridine-2-yl)-7-(4-triphenylsilyl) phenyl) pyrido [2, 3-b] pyrazine (DPPP) containing pyridopyrazine was designed and synthesized as a new electron-transporting material for organic lightemitting devices (OLEDs). The obtained material forms homogeneous and stable amorphous film. The new synthesized showed the reversible cathodic reduction for hole blocking material and the low reduction potential for electron transporting material in ...