title: Circularly-Polarized Luminescence (CPL) from Chiral AIE Molecules and Macrostructures.
abstract: Circularly-polarized luminescence (CPL) has received new attention on the rise of applications to generate devices and biologically active probes. These applications require fluorophores that are not only chiral but also provide strong fluorescence intensity in aggregated state. Thus, a new research branch has opened up a few years ago, which allows CPL-active fluorophores to be emissive in aggregated-state. As a result, reports on the combination of the CPL property with the aggregation-induced emission (AIE) phenomenon have emerged. Herein the early design principles that have been reported until now to generate CPL-active AIE-active fluorophores (AIEgens) are summarized. In this regard the alignment of monomeric emitters in a chiral fashion, either in supramolecules, polymers or liquid crystals has been proven to be a successful approach. Additionally, first reports have appeared that demonstrate how to tackle the daunting task to furnish individual CPL-active AIEgens.
authors.affiliation: HKUST-Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, 518057, China.|Department of Chemistry, HKUST Jockey Club Institute for Advanced Study, Institute of Molecular Functional Materials, Division of Biomedical Engineering, State Key Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors.forename: Jesse
authors.initials: J
authors.lastname: Roose
authors.affiliation: HKUST-Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, 518057, China.|Department of Chemistry, HKUST Jockey Club Institute for Advanced Study, Institute of Molecular Functional Materials, Division of Biomedical Engineering, State Key Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.|Guangdong Innovative Research Team, SCUT-HKUST Joint Research Laboratory, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China.
authors.forename: Ben Zhong
authors.initials: BZ
authors.lastname: Tang
authors.affiliation: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors.forename: Kam Sing
authors.initials: KS
authors.lastname: Wong
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry; D050866:Liquid Crystals / Q000737:chemistry; D049449:Luminescence; D008163:Luminescent Measurements / Q000379:methods; D061848:Optical Imaging / Q000379:methods*; D011108:Polymers / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D005456:Fluorescent Dyes; D011108:Polymers
keywords: aggregation-induced emission; chirality; circularly-polarized luminescence; polymers; supramolecular chemistry