Xue-Ting Wang, Fang-Wen Lv, Hang Qin, Xin-Tong Dai, Shan Jin and Xiu-Ying Zheng
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Abstract
Accurately designing and controlling the synthesis of circularly polarized luminescent (CPL) materials with both large asymmetry factor (glum) and high quantum yield (Φlum) values is a key scientific challenge. In this study, chiral ligands and luminescent π-conjugated systems are utilized as mixed ligands to form chiral helical polymers R/S-Ln-phen (Ln = Eu/Tb) by the regulation of intramolecular and intermolecular interactions. This approach aims to amplify the chirality and enhance luminescence efficiency. The compounds R/S-Eu-phen and R/S-Tb-phen demonstrated extremely high Φlum (86.88% for R/S-Eu-phen and 88.93% for R/S-Tb-phen) and relatively large glum (≈10−3) values.
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