Synthesis and characterization of one star-shaped polymer with charged iridium complex as luminescent core

► One three-arm star-shaped polymer with Ir complex core was synthesized by ATRP method. ► Cationic Ir complex can serve as versatile templates for polymerization initiators. ► The polymer shows a pure emission at 565 nm attributed to 3MLCT transition. ► The effective energy transfer occurs from the carbazole arm to the Ir complex core.