Comprehensive Study of Artificial Light-Harvesting Systems with a Multi-Step Sequential Energy Transfer Mechanism.

Autor: Wu Y; Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China., Wang Y; Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China., Yu X; Institute of Innovation Materials and Energy, College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China., Song Q; Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China.; Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, 518055, China.
Jazyk: angličtina
Zdroj: Advanced science (Weinheim, Baden-Wurttemberg, Germany) [Adv Sci (Weinh)] 2024 Aug; Vol. 11 (31), pp. e2404269. Date of Electronic Publication: 2024 Jun 14.
DOI: 10.1002/advs.202404269
Abstrakt: Artificial light-harvesting systems (LHSs) with a multi-step sequential energy transfer mechanism significantly enhance light energy utilization. Nonetheless, most of these systems exhibit an overall energy transfer efficiency below 80%. Moreover, due to challenges in molecularly aligning multiple donor/acceptor chromophores, systems featuring ≥3-step sequential energy transfer are rarely reported. Here, a series of artificial LHSs is introduced featuring up to 4-step energy transfer mechanism, constructed using a cyclic peptide-based supramolecular scaffold. These LHSs showed remarkably high energy transfer efficiencies (≥90%) and satisfactory fluorescence quantum yields (ranging from 17.6% to 58.4%). Furthermore, the structural robustness of the supramolecular scaffold enables a comprehensive study of these systems, elucidating the associated energy transfer pathways, and identifying additional energy transfer processes beyond the targeted sequential energy transfer. Overall, this comprehensive investigation not only enhances the understanding of these LHSs, but also underscores the versatility of cyclic peptide-based supramolecular scaffolds in advancing energy harvesting technologies.
(© 2024 The Author(s). Advanced Science published by Wiley‐VCH GmbH.)
Databáze: MEDLINE
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