该团队使用扫描隧道显微镜诱导的发光来探测组装在表面上的模型多色结构。模拟光合系统开发的策略,单个分子作为辅助的、被动的或阻塞的元素,促进和指导远距离供体和受体单位之间的共振能量转移。由于它依赖于有机发色团作为基本成分,该方法构成了一个强大的模型,可以解决天然光能捕获复合物中发挥作用的基本物理过程。
据介绍,在多色组合内的能量漏斗是植物有效转换太阳能的核心。这一过程的具体机制仍在积极讨论中,因为它们依赖于大量发色团与其环境之间的复杂相互作用。
附:英文原文
Title: Energy funnelling within multichromophore architectures monitored with subnanometre resolution
Author: Shuiyan Cao, Anna Rosawska, Benjamin Doppagne, Michelangelo Romeo, Michel Fron, Frdric Chrioux, Herv Bulou, Fabrice Scheurer, Guillaume Schull
Issue&Volume: 2021-05-24
Abstract: The funnelling of energy within multichromophoric assemblies is at the heart of the efficient conversion of solar energy by plants. The detailed mechanisms of this process are still actively debated as they rely on complex interactions between a large number of chromophores and their environment. Here we used luminescence induced by scanning tunnelling microscopy to probe model multichromophoric structures assembled on a surface. Mimicking strategies developed by photosynthetic systems, individual molecules were used as ancillary, passive or blocking elements to promote and direct resonant energy transfer between distant donor and acceptor units. As it relies on organic chromophores as the elementary components, this approach constitutes a powerful model to address fundamental physical processes at play in natural light-harvesting complexes.
DOI: 10.1038/s41557-021-00697-z
Source: https://www.nature.com/articles/s41557-021-00697-z
Nature Chemistry:《自然—化学》,创刊于2009年。隶属于施普林格·自然出版集团,最新IF:21.687
官方网址:https://www.nature.com/nchem/
投稿链接:https://mts-nchem.nature.com/cgi-bin/main.plex