Hierarchical chiral supramolecular assemblies with strong and invertible chiroptical properties
成果类型：
Article
署名作者：
Kim, Minju; Zhang, Mingyue; Zhu, You-Liang; Yan, Yan; Pu, Xin; Choi, Woosung; Chung, Sein; Cho, Kilwon; Kim, Jeongwon; Tsukruk, Vladimir; Yang, Zhenzhong; Kotov, Nicholas A.; Lu, Zhong-Yuan; Kim, Dong Ha; Lin, Zhiqun
署名单位：
National University of Singapore; Ewha Womans University; Jilin University; Anhui University of Technology; University System of Georgia; Georgia Institute of Technology; Pohang University of Science & Technology (POSTECH); Tsinghua University; University of Michigan System; University of Michigan; University of Michigan System; University of Michigan; Ewha Womans University; Ewha Womans University; Ewha Womans University; Ewha Womans University
刊物名称：
SCIENCE
ISSN/ISSBN：
0036-9505
DOI：
10.1126/science.adu0296
发表日期：
2025-08-14
关键词：
circularly-polarized luminescence
block-copolymers
aggregation phenomena
2'
7'-difluorofluorescein
nanoparticles
simulation
handedness
inversion
emission
polymers
摘要：
Supramolecular assemblies hold great promise for advanced chiral materials because of their structural diversity and dynamic features, but their low chiroptical activity limits practical applications. We report hierarchical supramolecular assemblies with giant chiroptical activity and mechanical attributes achieved through coassembly of achiral amphiphilic unimolecular micelles and chiral additives. Chiral fibrillar assemblies emerge from the nanostructured environment imposed by the micelles, driven by progressive chirality transfer through multiple hydrogen bonds between components. Integrating multifarious achiral luminescent molecules and nanocrystals into these assemblies leads to full-color circularly polarized luminescence-active materials with dissymmetry factors of similar to 10(-1). A concentration-dependent chirality inversion is accessed through tailoring the coassembly kinetics. This strategy enables efficient red CPL, crucial for quantum and optical technologies.