Light-Harvesting Systems Based on Organic Nanocrystals To Mimic Chlorosomes

Angewandte Chemie
Peng-Zhong ChenQing-Zheng Yang

Abstract

We report the first highly efficient artificial light-harvesting systems based on nanocrystals of difluoroboron chromophores to mimic the chlorosomes, one of the most efficient light-harvesting systems found in green photosynthetic bacteria. Uniform nanocrystals with controlled donor/acceptor ratios were prepared by simple coassembly of the donors and acceptors in water. The light-harvesting system funneled the excitation energy collected by a thousand donor chromophores to a single acceptor. The well-defined spatial organization of individual chromophores in the nanocrystals enabled an energy transfer efficiency of 95 %, even at a donor/acceptor ratio as high as 1000:1, and a significant fluorescence of the acceptor was observed up to donor/acceptor ratios of 200 000:1.

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Citations

Apr 18, 2018·Angewandte Chemie·Meng-Jia SunJiannian Yao
Aug 23, 2018·Chemistry : a European Journal·Lou RocardDavide Bonifazi
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Jan 16, 2021·Journal of the American Chemical Society·Dengqing ZhangTao Yi

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