A New Class of Blue‐Emitting Materials Based on 1,3,5‐Oxadiazole Metal Chelate Compounds for Electroluminescent Devices

A new class of beryllium‐oxadiazole compounds (see Figure) for electroluminescent (EL) devices has been synthesized. These materials have high thermal stability, and EL devices with these beryllium chelate compounds as the light‐emitting layers exhibit excellent current–voltage characteristics and provide highly saturated blue emission with high luminance.