A Conjugated Polymeric Supramolecular Network with Aggregation-Induced Emission Enhancement: An Efficient Light-Harvesting System with an Ultrahigh Antenna Effect |
| |
| Authors: | Dr Linxian Xu Zaiyu Wang Rongrong Wang Prof Dr Lingyun Wang Xuewen He Prof Dr Huanfeng Jiang Prof Dr Hao Tang Prof Dr Derong Cao Prof Dr Ben Zhong Tang |
| |
| Institution: | 1. State Key Laboratory of Luminescent Materials and Devices, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641 China;2. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, Hong Kong |
| |
| Abstract: | Superior artificial light-harvesting systems (ALHSs) require exceptional capacity in harvesting light and transferring energy. In this work, we report a novel strategy to build ALHSs with an unprecedented antenna effect (35.9 in solution and 90.4 in solid film). The ALHSs made use of a conjugated polymeric supramolecular network (CPSN), a crosslinked network obtained from the self-assembly of a pillar5]arene-based conjugated polymeric host ( CPH ) and conjugated ditopic guests (Gs). The excellent performance of the CPSN could be attributed to the following factors: 1) The “molecular wire effect” of the conjugated polymeric structure, 2) aggregation-induced enhanced emission (AEE) moieties in the CPH backbone, and 3) high capacity of donor–acceptor energy transfer, and 4) crosslinked structures triggered by the host–guest binding between Gs and CPH . Moreover, the emission of the CPSN could be tuned by using different Gs or varying the host/guest ratio, thus reaching a 96 % sRGB area. |
| |
| Keywords: | Aggregationsinduzierte Emission Konjugierte Polymere Einfangen von Licht Säulenarene Supramolekulare Chemie |
|
|
