Polymer-Based Circularly Polarized Luminescent Materials

摘要

Chiral materials capable of generating circularly polarized luminescence (CPL)have gained rapidly growing research interest by virtue of their peculiar photophysicalcharacteristics and far-reaching applications. Amongst various CPLmaterials, polymer-based CPL materials have constituted an important classowing to their abundant types, ease of manufacture, high thermal stability, aswell as, tunable properties. The present work reviews the latest advances inconstructing polymer-based CPL materials, which are classified based on theinteraction modes between chiral and luminescent components, that is, covalentinteraction, non-covalent interaction, as well as, without covalent andnon-covalent interactions. The newly emerging categories of polymer-basedCPL materials, that is, nonconventional fluorescence-based CPL materials, circularlypolarized room temperature phosphorescence, and polymer-based CPLmaterials with thermally activated delayed fluorescence properties are alsopresented. Typical applications of the polymer-based CPL emitters in organiclight-emitting diodes, information security encryption, and optical sensors arefurther discussed. Additionally, the current challenges and future perspectivesin this field are summarized. This review article is expected to stimulate moreunprecedented achievements derived from polymer-based CPL materials,thus further promoting their future practical applications.