手性有机长余辉材料及其圆偏振发光OA

Introducing chiral optical properties into organic afterglow materials capable of persistent luminescence after the removal of the excitation source to construct luminescent materials featuring both long-lived emission and cir-cularly polarized luminescence enables dual-dimensional optical regulation in both time and polarization,which has become an important research direction in organic luminescence and functional optical materials.Such materials ex-hibit unique advantages in three-dimensional displays,information encryption,anti-counterfeiting,and chiral recog-nition.In this review,we systematically summarize the excited-state processes of organic afterglow and circularly po-larized luminescence and their coupling mechanisms,from the perspectives of emission mechanisms to material de-sign strategies for constructing circularly polarized organic afterglow materials.We further review recent advances in related material systems designed by invoking intrinsic molecular chirality,chirality transfer,and chiral self-assem-bly,together with their circularly polarized afterglow properties and applications.Finally,the current challenges in this field are discussed,and its future development trends are prospected.