Synthesis and electroluminescent property of bis (2-(benzimidazol-2-yl) quinolinato) zinc

An emission material, (2-(benzimidazol-2-yl) quinolinato) zinc (ZnBIQ) used for organic light emitting devices, has been synthesized. The melting transition (Tm) of ZnBIQ is 436 °C and no glass transition temperature (Tg) was observed up to 430 °C. The emission spectrum of organic emitting device using ZnBIQ as emitted layer exhibits a broad maximum at 625 nm. The color of the emitted light is in the red region in the CIE coordinate of x=0.54, y=0.39.