A highly luminescent material, class="boldFont">Cbz-MI with (D-π-A-π-D) backbone has been rationally designed and successfully synthesized.
class="boldFont">Cbz-MI exhibit high photoluminescence quantum yield of 0.84 and 0.72 in solution and doped matrix.
Maximum EQE of 2.5% with luminance of 5144 cd/m2 is achieved in organic light-emitting diode.