Accumulative Charge Separation Inspired by Photosynthesis

作者：Karlsson Susanne; Boixel Julien; Pellegrin Yann; Blart Errol; Becker Hans Christian; Odobel Fabrice^*; Hammarstrom Leif

来源：Journal of the American Chemical Society, 2010, 132(51): 17977-17979.

DOI：10.1021/ja104809x

Molecular systems that follow the functional principles of photosynthesis have attracted increasing attention as a method for the direct production of solar fuels. This could give a major carbon-neutral energy contribution to our future society. An outstanding challenge in this research is to couple the light-induced charge separation (which generates a single electron-hole pair) to the multielectron processes of water oxidation and fuel generation. New design considerations are needed to allow for several cycles of photon absorption and charge separation of a single artificial photosystem. Here we demonstrate a molecular system with a regenerative photosensitizer that shows two successive events of light-induced charge separation, leading to high-yield accumulation of redox equivalents on single components without sacrificial agents.

• 出版日期2010-12-29