Engineering intelligent chiral silver cluster-assembled materials for temperature-triggered dynamic circularly polarized luminescence
Jia-Yin Wang , Jia-Wang Yuan , Xue-Mei Liu , Ying-Jie Liu , Feng Bai , Xi-Yan Dong , Shuang-Quan Zang
Aggregate ›› 2024, Vol. 5 ›› Issue (3) : 508
Engineering intelligent chiral silver cluster-assembled materials for temperature-triggered dynamic circularly polarized luminescence
The development of stimuli-responsive circularly polarized luminescence (CPL) materials is quite attractive but challenging. Here, a pair of atomically precise enantiomers R/S-Ag20 nanoclusters has been synthesized using chiral acid ligands. And then, stimuli-responsive CPL materials were developed by assembling the chiral silver nanoclusters with an achiral bridging ligand. The atomically precise silver cluster-assembled materials produce CPL with a dissymmetry factor (|glum|) of 1 × 10−3, through the high-efficiency chiral induction process. More interestingly, the single CPL band at room temperature could quickly transform into highly separated dual CPL emissions at low temperature. This study provides a new strategy for the rational functionalization of chiral silver clusters in preparing cluster-based CPL emitters and enriches the types of stimuli-responsive CPL materials.
chiral silver clusters / chirality transfer / circularly polarized luminescence / cluster-assembled materials / thermochromism
2024 The Authors. Aggregate published by South China University of Technology; AIE Institute and John Wiley & Sons Australia, Ltd.
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