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Highly Efficient Artificial Light‐Harvesting Systems Constructed in Aqueous Solution Based on Supramolecular Self‐Assembly
Author(s) -
Guo Shuwen,
Song Yongshang,
He Yuling,
Hu XiaoYu,
Wang Leyong
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201800175
Subject(s) - supramolecular chemistry , aqueous solution , supramolecular assembly , fluorescence , self assembly , nile red , acceptor , azine , chemistry , photochemistry , antenna effect , artificial photosynthesis , eosin y , nanotechnology , materials science , luminescence , molecule , organic chemistry , optoelectronics , catalysis , photocatalysis , physics , condensed matter physics , quantum mechanics
Highly efficient light‐harvesting systems were successfully fabricated in aqueous solution based on the supramolecular self‐assembly of a water‐soluble pillar[6]arene (WP6), a salicylaldehyde azine derivative (G), and two different fluorescence dyes, Nile Red (NiR) or Eosin Y (ESY). The WP6‐G supramolecular assembly exhibits remarkably improved aggregation‐induced emission enhancement and acts as a donor for the artificial light‐harvesting system, and NiR or ESY, which are loaded within the WP6‐G assembly, act as acceptors. An efficient energy‐transfer process takes place from the WP6‐G assembly not only to NiR but also to ESY for these two different systems. Furthermore, both of the WP6‐G‐NiR and WP6‐G‐ESY systems show an ultrahigh antenna effect at a high donor/acceptor ratio.