Promising Optoelectronic Materials: Polymers Containing Phosphorescent Iridium(III) Complexes

As one of the most promising optoelectronic materials, polymers that contain phosphorescent Ir(III) complexes have attracted more and more interest in recent years. They are a class of well-known electroluminescent materials with excellent performance. So far, efficient green-, red-, and white-emitting polymer light-emitting diodes based on polymers with on-chain Ir(III) complexes have been realized successfully. For the realization of this class of polymer material, Ir(III) complexes (as energy guest) can be introduced into the main-chain or side-chain of polymers (as energy host). In this article, we summarize the design principles, synthetic routes, structure-property relationships, and applications in optoelectronic devices of polymers that contain phosphorescent Ir(III) complexes.